Shanghai Huabang Industrial Business Network - frequency meter

[frequency meter]D3-Hz series 0.2 level frequency meter

2026-6-16 16:32:23

D3 Hz series 0.2 level frequency meter, electric series, AC/DC meter specifications and main technical parameters

Frequency table level 0.2	D3Hz-1	rated voltage	measurement range	265×195×165	Suitable for measuring frequency in AC circuits Listed as a special specification
		36-110-220V (special specification) or 110-220-380V	45-65Hz
			90-110 Hz
			135-165 Hz
			180-220 Hz
			350-450 Hz
			450-550 Hz
			700-900 Hz
			900-1100 Hz
			1800-2200 Hz
			2250-2750 Hz

D3 Hz series 0.2 level frequency meter

[frequency meter]F96D-2HzB Dual needle frequency meter

2026-6-16 16:22:44

F96D-2HzB Dual Pin Frequency Meter

[frequency meter]AS9001 type error code tester

2026-6-16 16:22:36

AS9001 type error code tester

1�� Usage characteristics:
1. Easy to operate: using a Chinese character LCD display screen, with menu prompts for various operations, making it convenient to use;
2. Having memory function: After the user correctly sets the parameters, they can continue to use them in future testing processes.
3. Provide multiple testing interfaces, such as TTL, RS232 interface, RS422 interface, etc.
4. Wide adaptability and high testing speed: the maximum testing speed is not less than 2.048 Mbps.
5. Capable of testing various error damage performance indicators of the channel;
6. Synchronous display of test results: AS9001 displays all measurement indicators simultaneously during the measurement process.
7. Parameters can be set according to user needs, such as the selection of test frame length, test interval, and so on.
8. High reliability and expandable functionality: The device adopts FPGA+microprocessor design, adding new functions according to users' new requirements.

2�� Technical requirements for AS9001 bit error tester:

According to the speed		Burst mode: greater than 2.048Mbps Continuous mode: greater than 2.048Mbps
interface method		Interface 1: Compliant with TTL interface electrical characteristics Interface 2: Compliant with RS232 interface electrical characteristics Interface 3: Compliant with RS422 interface electrical characteristics
Test code type		Six code types: 1 code, 0/1 code, 223-1 PN sequence, 229-1 PN sequence, 215-1 PN sequence
frame length		128/256/512/1024/2048/4096 bit with six selectable lengths
Frame interval (for burst mode)		128/256/512/1024/2048/4096 bit with six selectable lengths
Equipped with internal and external clock selection		Internal clock rate selection: Six clock rates of 2.4/4.8/9.6/16/32/64 kbps
Measurable channel error damage index		Burst mode: average bit error rate, frame error rate, frame loss rate; Continuous mode: average bit error rate, second error rate (bit error rate, frame error rate), average cycle time, average slide time

[frequency meter]AS3345 digital frequency meter

2026-6-16 16:22:27

AS3345 Digital Frequency Meter:

8-digit display, 10Hz~100MHz
Sensitivity: 30mV
Accuracy: 4 × 10-6
Daily stability: 5 × 10-6

[frequency meter]AS3374 digital frequency meter

2026-6-16 16:22:19

AS3374 Digital Frequency Meter:

8-digit display, frequency measurement: 10Hz~2GHz
Sensitivity: 30mV
Accuracy: 4 × 10-6
Daily stability: 5 × 10-6

[frequency meter]PP17 portable high-precision frequency meter

2026-6-16 16:22:09

The PP17P portable high-precision frequency meter is a series of products of the power frequency electrical parameter tester (standard meter). It uses a high-speed and high-precision A/D converter as the core, and utilizes multiple microprocessors and large-scale programmable logic integrated circuits to synchronously sample voltage, current, and period at high speed. The effective values of voltage and current are calculated mathematically. This table is also based on internal precision standards and regularly self calibrated. At the same time, the calibration of the overall instrument adopts digital correction without the need for potentiometers, thereby reducing the uncertainty of the instrument and achieving long-term high-precision measurement of the instrument.
The PP17 portable high-precision frequency meter adopts an imported aluminum chassis and vacuum fluorescent plasma display, which has a beautiful appearance and clear display. It is currently one of the highest performance instruments for measuring power frequency electrical parameters in China. It can be widely used as a frequency measurement standard meter or on-site testing equipment in metrology institutes, industrial and mining enterprises, metrology departments of power systems, laboratories, etc.

Main technical performance indicators
Basic requirements: This instrument complies with the provisions of Group I instruments in the national standard GB8587-86 "General Principles for Environmental Testing of Measuring Instruments": the rated working temperature is 18 ��~22 ��, the humidity is �� 86% RH, and it is allowed to work at 5 ��~45 ��.
Measurement range: Type A 10Hz~10KHz, Type B 10Hz~1MHz, Type C 0.005Hz~1000Hz
Input voltage: 0.1V~400V Input impedance: R �� 2M �� Input load: 0.1VA
Temperature coefficient: better than 10PPM/�� within 5 ��~45 �� Accuracy: 0.005%

other
Power supply: Rated voltage: 220V ± 5%
Rated frequency: 50HZ ± 5%, approximately 30W
Preheating time: Accurate measurement takes 30 minutes under rated working environment
Dimensions: 285mm × 250mm × 110mm (L × B × H) Weight: Approximately 3.5Kg

[frequency meter]ZW5405 Frequency Table

2026-6-16 16:22:01

ZW5405 Frequency Table

Measurement item: F (45-65) Hz
Input: AC (50-500) V
Measurement Error Accuracy: ± 0.05Hz
Display: 4 digits, 0.8 "LED
Power Supply: AC220V ± 10%/AC100V ± 10% (optional)
Instrument dimensions: 80 (H) × 160 (W) × 124 (D) mm
Opening size Panel Cut Out: 150 × 75mm
Instrument weight NetWeight: �� 600g
RS485 option (ModBus protocol)

[frequency meter]ZW1620F Intermediate Frequency Table

2026-6-16 16:21:52

ZW1620F intermediate frequency meter

Measurement item: F (45Hz-1kHz)
Accuracy level: Level 0.5 (45Hz-65Hz)/Level 1.0 (66Hz-1kHz)
Frequency response BandWidth: (45-1000) Hz
Power Supply: AC 85-265V 50/60Hz
Instrument dimensions: 48 (H) × 96 (W) × 105 (D) mm
Opening size Panel Cut Out: 44 × 91 (mmxmm)
Instrument weight NetWeight: �� 340g
Display: 4 digits, 0.5 "LED
RS485 option (ModBus protocol)

[frequency meter]PC91 series panel digital ohmmeter

2026-6-16 16:21:43

The PC91 series panel type digital ohmmeter is a small and popular instrument for 4 and a half bit CMOS large-scale integrated circuits. Its measurement results are displayed using five digit LEDs, and low resistance measurement adopts a four terminal measurement method. This meter has the characteristics of small size, low power consumption, high sensitivity, good reliability, excellent performance, strong adaptability, and easy use. It is a supporting instrument for various measuring instruments and consoles.

Technical data

Usage conditions
Environmental temperature: 0-+40 ��
Relative humidity of the environment: below 80%
Power supply: 220V ± 22V, 50 ± 1.5Hz (including PC91/51-58A: DC 24V ± 3.0V or 9.0V ± 0.5V)

Specifications, display values, and basic errors: Under reference conditions, the basic errors of the product should comply with the following table.

model	measurement range	resolution	test current	basic error
PC91/1	0-19.999��	1m��	10mA	± (0.05% reading+3 words)
PC91/2	0-199.99��	10m��	1mA	± (0.05% reading+2 words)
PC91/3	0-1.9999k��	100m��	0.1mA
PC91/4	0-19.999k��	1��	10��A
PC91/5	0-199.99k��	10��	1��A	± (0.06% reading+3 words)
PC91/51	0-19.999��	1m��	10mA	± (0.05% reading+2 words)
PC91/58A	0-100.0M��	100k��	10nA	± (3% reading+5 words)

Weight: 0.6kg
Dimensions: 48 ´ 110 ´ 112mm
Hole size: 44'95mm

[frequency meter]PP32 Type Panel Digital Frequency Meter

2026-6-16 16:21:34

The PP32 panel digital frequency meter is a small and popular instrument that uses CMOS large-scale integrated circuits, and its measurement results are displayed using an eight digit LED. It can be used in conjunction with various sensors or converters to conveniently achieve digital measurement of various electrical and non electrical quantities, making it an ideal matching instrument for various measuring instruments and consoles.

technical indicators

Usage conditions
Environmental temperature: 0-+40 ��;
Relative humidity of the environment: below 80%;
Power supply: 220 ± 22V power frequency 50Hz;

Measurement frequency

specification project	PP32/1	PP32/2	PP32/3
measurement range	10Hz��10MHz
Measure amplitude	100mV-20V (effective value)
Input waveform	Sine wave, triangular wave, square wave
accuracy	± 0.005% ± 1/ft (f: measured frequency meter; t: Gate time)
input impedance	Greater than 500k ��/less than 45pf
gate time	0.1s	1s	10s
Display digits	7 digits	8 digits	8 digits
resolution	10Hz	1Hz	0.1Hz

Weight: less than 0.6kg

Dimensions: 48 × 110 × 112mm

Hole size: 44 × 95mm

[frequency meter]PP18/1 type digital power frequency meter

2026-6-16 16:21:26

The PP18/1 digital power frequency meter is a high-precision panel instrument that measures 50Hz power frequency with a resolution of up to 0.01Hz. The table adopts large-scale frequency measurement integrated circuits and frequency synthesis technology, which endows the instrument with excellent performance of high precision, high stability, and high reliability. The instrument adopts a 4-digit LED digital display for reading, which is soft and eye-catching. This product adopts a full plastic structure with a small and lightweight design, making it a measuring tool for power systems and scientific research institutions.

Technical data of PP18/1 digital frequency meter
Terms of Use
Environmental temperature: 5-+40 ��
Relative humidity of the environment: 20% -80% (no condensation)
Power supply: 220V ± 20V 50 ± 1.5Hz
Should not be subjected to severe vibrations and mechanical impacts
The air should not contain dust and impurities sufficient to corrode the instrument
Should not be interfered by strong electromagnetic fields

Specifications and input characteristics
Measurement range: 40.00-70.00Hz
Resolution: 0.01Hz
Power frequency measurement: Power frequency and sine wave Vp-p �� 550V, there should be no strong electromagnetic field interference
Conversion rate: 1 time/second
Basic error: 0.03% reading ± 2 words

Dimensions: 48 × 110 × 110mm
Hole size: 44 × 95mm

[frequency meter]HB404F Intelligent power frequency meter

2026-6-16 16:21:18

HB404F intelligent power frequency meter

1�� Characteristics
Measure the frequency of industrial electricity consumption
Input voltage: AC: 0-500V
Response frequency: 20.00-99.99Hz
Relay alarm output, alarm range can be set
Simulate current transmission output, with adjustable transmission output range

2�� Technical parameters of HB404F intelligent power frequency meter
1. Working power supply: AC/DC85-260V (other power supplies can be customized)
2. Frequency measurement range: 20.00-99.99Hz
3. Measurement accuracy: Level 0.5
4. Contact capacity: AC250V/3A
5. Transmission output: 4-20mA, 0-20mA
6. Transmission accuracy: 1% FS
7. Dimensions: 96 × 48 × 82mm
8. Hole size: 92 × 44 mm
9. Operating environment: 0-50 ��; ��85��RH

3�� Model Description

HB404F intelligent power frequency meter

[frequency meter]GFC-8010H frequency meter

2026-6-16 16:21:09

Detailed information of GFC-8010H frequency meter:

Product model: gfc-8010h
Product Introduction:
��gfc-8010h (120mhz)
Provide frequency and cycle measurements
Frequency range: 1hz~120mhz
8-digit 0.3 "LED display
. over flow indicator light
High sensitivity:<15mvrms
High stability time base: 5ppm
Equipped with low-pass filter function
display
8-bit with hz, khz, mhz, ghz, s, ms, �� s, ns, and overflow
gate time
0.1s, 1s, 10s switch se-lectable
accuracy
+(1 digit+time reference accuracy)
input
Sensitivity of 10hz~60mhz<20mvrms;
60mhz ~ 100mhz < 30mvrms��
100mhz ~ 120mhz < 40mvrms
Impedance 1m ��//35pf
Coupling AC coupling
Maximum input voltage 150vrms

time base
Oscillation frequency 10mhz

Temperature stability 25 ° C ± 5 ° C: ± 5 ppm
Resolution using AC 100v/120v/220V/230v ± 10%, 50/60hz power supply
attachment
Operation manual x 1,
1 power cord,
Test line gtl-101 × 1
Dimensions and Weight
230 (width) x 95 (height) x 280 (length) mm,
About 1.7 kilograms

[frequency meter]VC3165 Intelligent Frequency Meter

2026-6-16 16:21:01

Detailed information on VC3165 intelligent frequency meter:

8-bit LED display, working status and unit display
Gear selection, stable performance, high reliability
The gate time can be continuously adjusted within a range of 100ms-10s
Frequency measurement: 0.01Hz~2.4GHz
Cycle measurement: 0.5us-10s
Input sensitivity: 100mVrms
Power supply: 110/220V ± 10%

[frequency meter]PM6669 High precision frequency meter

2026-6-16 16:20:52

Detailed information on PM6669 high-precision frequency meter:

A frequency counter that completely breaks down the barrier of cost-effectiveness
PM 6669 is a very economical and easy-to-use frequency counter that fully meets your demanding requirements for high-precision measurement, reliability, and durability.
The multifunctional PM 6669 provides frequency, cycle, summation count, ratio, pulse width, and frequency offset measurement functions.
The optional components for enhancing functionality include a 1.3 GHz input, battery pack, high stability MTCXO time base oscillator, and IEEE-488 bus interface.

measurement function

Measurement Mode

Frequency A, Frequency B, Period A, RPM A, Totalize A. Frequency A/Ao, Frequency A-Ao, Pulse Width A

Frequency A or B (optional)

Range:	Frequency A: 0.1 Hz... 160 MHz
	Frequency B: 70 MHz... 1.3 GHz (Option PM 9608B)
pattern	Countdown frequency calculation
Displayed LSD:	2.5 x 10-7 x frequency/measurement time

Frequency A/Ao

Measure frequency A. The measured frequency is divided by a constant Ao before display. The resolution of the displayed ratio is determined by the measurement of frequency A. When powered on, Ao is set to 1 (default value).

Frequency A-Ao

Measure frequency A. Subtract the value of constant Ao from the measured frequency before displaying. The resolution of the displayed differential is determined by the measurement of frequency A. When powered on, Ao is set to 0 (default value).

RPM A

	Measure frequency A. Multiply the measured frequency by 60 and display the result as revolutions per second (RPM) on the screen.
Range:	6 RPM...720 x 106 RPM

Cycle A

Range:	8 ns...2 x 108s
pattern	Single cycle measurement (SINGLE) or cycle average measurement (measurement time of 0.2, 1, or 10 seconds).
Displayed LSD:	Single cycle measurement:
	(Time<100s): 100ns
	(Time>100s): 5 x cycles/109s
	Cycle average measurement: 2.5 x 10-7 x cycles/measurement time

Accumulate A

	The calculation of the event is controlled by the START/STOP button. Accumulate the number of consecutive start stop cycles. The RESET button will turn off the gate signal and reset the frequency counter to zero.
Range:	0... 1 x 1015 �� There are units indicating k or M (thousands or trillions). If it exceeds the range, the result will be discarded.
Frequency range:	Sine wave: 10 Hz... 16 MHz
	Pulse wave: 0 Hz... 16 MHz
	Pulse resolution: 80 ns
Displayed LSD:	1 count (count<109)
	5 x Count/109 (Count ³ 109)

Width A

	Measure the forward pulse width. The measurement time option is invalid (usually SINGLE measurement).
Range:	100 ns...2 x 108s
Displayed LSD:	(Time<100s): 100ns
	(Time ³ 100s): 5 x width/109s
	(Only when the duty cycle of the signal is 0.5, a trigger may occur at 50% of the amplitude)

definition

Displayed LSD

LSD =

The value of the least significant bit displayed. All calculated LSD (see measurement function section) should be rounded to the nearest decimal (e.g. 0.3 Hz rounded to 0.1 Hz, 5 Hz rounded to 10 Hz) and should not exceed 9 words.

resolution

Resolution=	The minimum increment between two measurement results on the display screen, with an error of one word.
Frequency A, B, period:	The resolution can be 1 LSD unit or 2 LSD units. If:
	If the LSD x measurement time/frequency or period is less than 10-7, the resolution is 2 LSD units (with a 30% probability)
	Otherwise, the resolution is 1 LSD unit (with a 70% probability).
Single cycle A and width A:	The resolution is equal to 1 LSD unit.

Inaccuracy

Inaccuracy,	That is to say, the relative error depends on the following factors:
	± Resolution/frequency, period or width
	± Relative triggering error
	± relative time base error

Relative triggering error

Frequency A, Period A:

± Noise Voltage A (Vpp)/Signal Slope A (V/s) x Measurement Time

Relative time base error

Deviation of ± 10 MHz/10 MHz

PM6669 high-precision frequency meter input technical specifications

Enter A

Frequency range:	10 Hz... 160 MHz (120 MHz value is 160 MHz, within a certain temperature range; Typical value is+23 º C ± 5 º C)
Sensitivity:	Sine wave:
	10 mVrms, 10 Hz to 120 MHz
	30 mV rms typical value, 120 to 160 MHz at room temperature
	Pulse: 30 mV rms, 0.1 Hz... 120 MHz
Coupling:	Communication coupling
Impedance:	1 M�� // 30 pF
Attenuation:	Continuously adjustable within two ranges between x1 and x400
wave filter:	A switchable 50 kHz low-pass noise filter with a suppression of 20 dB at 200 kHz.
Maximum voltage:	350V (DC+AC peak) between 0 and 440 Hz, drops to 11 Vrms at 1 MHz.

trigger

Trigger level:	3 different trigger levels, adjustable duty cycle, and automatic:
	Symmetric input signal can be selected with a duty cycle of 0.25... 0.75 for the input signal.
	Positive pulse, used for input signals with a duty cycle<0.25
	Negative pulse, used for input signals with duty cycle>0.75
Automatic trigger level:	The frequency counter will undergo testing and automatically select the optimal trigger level setting. The automatic mode requires repetitive signals with a repetition rate>100 Hz. In TOTALIZE-A measurement mode, the automatic function is not available.
Trigger slope (triggered only through GPIB):	Positive or negative

RF input 1.3 GHz (option PM 9608B)

PM 6666	Enter C
PM 6669	Enter B
Frequency range:	70 MHz to 1.3 GHz
Coupling:	Communication coupling
Working input voltage range:	10 mV rms to 12 V rms, 70 MHz to 900 MHz
	15 mV rms to 12 V rms, 900 MHz to 1.1 GHz
	40 mV rms to 12 V rms, 1.1 to 1.3 GHz
Amplitude modulation tolerance	98%, the minimum signal must exceed the required minimum operating input voltage
Impedance:	50 �� nominal value, VSWR < 2:1
Maximum voltage that will not cause damage:	12 V rms, Provide overload protection through PIN diode

External reference input D

	When an appropriate external reference signal is connected, the input is automatically monitored. The display screen will show that an external reference signal has been used.
Input frequency:	10 MHz ± 0.1 MHz
Coupling:	Communication coupling
Sensitivity:	500 mV rms
Input impedance:	Approximately 300 �� at 10 MHz
Maximum input voltage:	15 V rms

[frequency meter]DF3381A digital frequency meter

2026-6-16 16:20:44

Detailed information on DF3381A digital frequency meter:

Using a microcontroller for measurement, data processing, and control.
It has functions of frequency measurement, cycle measurement, and counting.
8-bit precision display.
The frequency stability is higher than that of a typical digital frequency meter.
Equipped with an input attenuator.
Equipped with a low-pass filter.
There is a 10MHz time base output.
The decimal point is automatically located and the unit indicator light is automatically displayed.
There is an overflow indication beyond the measurement range.
Multi level pre selection and maintenance during gate operation.

Technical parameters of DF3381A digital frequency meter:

A-channel frequency measurement range: 1Hz~100MHz
B-channel frequency measurement range: 100MHz to 1.2GHz
A-channel cycle measurement range: 1Hz-10MHz
A-channel counting range: 108-1 (1Hz~10MHz)
Frequency stability: 5 × 10-6/day
Maximum measurement sensitivity: better than 20mVrms
Input impedance of channel A: 1M ��/35pF
B-channel input impedance: 50 ��
Maximum safe input voltage: 250 (DC+ACpp)

[frequency meter]DF3322 digital frequency meter

2026-6-16 16:20:36

Detailed information of DF3322 digital frequency meter:

Features:
Eight and a half digit display.
There are multiple measurement functions such as frequency, cycle, external control timing, manual control timing, and cumulative counting.
The cycle measurement can be as low as 10 seconds.
The timing measurement can be as low as 200000 seconds.
Automatic decimal point positioning.
The unit indicator light automatically displays.
There is a standard frequency self-test function.
Suitable for measuring various waveforms.

Technical parameters of DF3322 digital frequency meter:

Frequency measurement range: 1Hz~10MHz
Periodic measurement range: 0.1 �� S to 10 seconds
External control timing range: 10S to 2 × 105S
Manual timing range: up to 2 × 105S
Accumulated counting range: up to 2 × 105-1 times
Frequency stability: 1 × 10-5/day
Maximum sensitivity: 30mVrms
Input impedance: 1M ��/25pF

[frequency meter]GPS Reference Rubidium Atomic Frequency Standard

2026-6-16 16:20:28

Detailed information on the GPS reference rubidium atomic frequency standard:

Composed of a rubidium oscillator and a GPS receiver, the output frequency accuracy and drift of the rubidium oscillator are tested and calibrated using the reference second signal generated by GPS, resulting in higher average accuracy and better long-term stability of the frequency signal output by the oscillator. It can be used as a combination system for measuring and testing atomic frequency standards, high-precision frequency standards, and testing systems, with high cost-effectiveness.

1. Output frequency: 10MHz, 5MHz, 1MHz
2. Frequency standard characteristics
Accuracy: �� 5E-12/24 hours after startup
Drift: �� 5E-14/day (automatic mode, GPS taming)
3. Time frequency testing

The GPS reference rubidium atomic frequency standard can be used to test parameters such as frequency accuracy, frequency drift rate, frequency startup characteristics, and daily frequency fluctuations

[frequency meter]F1000-C frequency meter

2026-6-16 16:20:19

Introduction to F1000-C Frequency Meter

Eight digit LED display
Less switches and simple operation
Fast and high-resolution

Technical specifications of F1000-C frequency meter

Frequency range: 10Hz~1000MHz
Display: 8-bit LED
Gate time: 0.01S/0.1S/1S (seconds)
Accuracy: ± 1Hz ± 1 digit ± Time base accuracy
Input sensitivity: 10Hz~10MHz: 20mV (channel 1); 10MHz~100MHz: 25mV (channel 1); 100MHz~1000MHz: 25mV (channel 2)
Input impedance: 1M �� channel 1, 50 �� channel 2
Maximum input voltage: 250VRMS channel 1; 5VRMS channel 2
Maximum aging rate: ± 5ppm per year
Power requirement: AC 220V ± 10% (50/60Hz)
Power consumption: approximately 5W
Size: 210 x 230 x 76 (LxWxH) mm
Weight: 1.8kg

[frequency meter]GFC-8131H frequency meter

2026-6-16 16:20:11

Detailed information of GFC-8131H frequency meter:

Digital frequency counter, main specifications: 0.01Hz~1.3GHz
Provide frequency and cycle measurements
High resolution in both high and low frequencies
Frequency range: 0.01Hz~1.3GHz
High sensitivity: 10mVrms
. 1Hz resolution: 100nHz
Adjustable trigger level control
Display lock function

[frequency meter]VC2000 Intelligent Frequency Meter

2026-6-16 16:20:03

VC2000 Intelligent Frequency Meter:

8-bit LED display, working status memory
The gear and gate time can be set according to the pulse count as needed
Frequency measurement: 10Hz~2.4GHz
Crystal oscillator measurement: 3.5MHz-16MHz
Input sensitivity: 100mVrms
Power supply: 110/220V ± 10%

[frequency meter]DF3370B digital frequency meter

2026-6-16 16:19:54

The DF3370B digital frequency meter adopts large-scale frequency measurement integrated circuits and ultra high speed frequency division circuits.

Equipped with equal precision measurement and easy touch button control.
It has four measurement functions: frequency measurement, cycle measurement, cumulative counting, and self checking.
There are two measurement channels, HF and UHF.
Eight digit digital display.
Automatic decimal point positioning.
The unit indicator light automatically displays.
Equipped with overflow indicator.
There is a standard frequency self-test function.
Equipped with a low-pass filter.
Novel plastic casing, compact and beautiful in appearance.

Main technical parameters of DF3370B digital frequency meter:
HF frequency measurement range: 1Hz~100MHz
UHF frequency measurement range: 100MHz~1GHz
Periodic measurement range: 10Hz to 2.5MHz
Counting measurement range: 108-1 (10Hz~10MHz)
Frequency stability: 1 × 10-5/day
Maximum measurement sensitivity: better than 25mVrms
Input impedance: 1M ��/35pF (HF channel) 50 �� (UHF channel)

[frequency meter]DF3390B digital frequency meter

2026-6-16 16:19:46

Features:
Adopting large-scale frequency measurement integrated circuits and ultra high speed frequency division circuits.
Equipped with equal precision measurement and easy touch button control.
It has four measurement functions: frequency measurement, cycle measurement, cumulative counting, and self checking.
There are two measurement channels, HF and UHF.
Eight digit digital display.
Automatic decimal point positioning.
The unit indicator light automatically displays.
Equipped with overflow indicator.
There is a standard frequency self-test function.
Equipped with a low-pass filter.
Novel plastic casing, compact and beautiful in appearance.

Main technical parameters of DF3390B digital frequency meter:

HF frequency measurement range: 1Hz~100MHz
UHF frequency measurement range: 100MHz~2.4GHz
Periodic measurement range: 10Hz to 2.5MHz
Counting measurement range: 108-1 (10Hz~10MHz)
Frequency stability: 1 × 10-5/day
Maximum measurement sensitivity: better than 25mVrms
Input impedance: 1M ��/35pF (HF channel) 50 �� (UHF channel)

[frequency meter]DF3380A digital frequency meter

2026-6-16 16:19:38

DF3380A digital frequency meter features:
Adopting large-scale frequency measurement integrated circuits and ultra high speed frequency division circuits.
It has four measurement functions: frequency measurement, cycle measurement, cumulative counting, and self checking.
There are two measurement channels, HF and UHF.
Eight digit digital display.
Automatic decimal point positioning.
The unit indicator light automatically displays.
Equipped with overflow indicator.
There is a standard frequency self-test function.
Equipped with a low-pass filter.
Novel plastic casing, compact and beautiful in appearance.

Main technical parameters:
HF frequency measurement range: 10Hz to 100MHz
UHF frequency measurement range: 100MHz~1.3GHz
Periodic measurement range: 10Hz to 2.5MHz
Counting measurement range: 108-1 (10Hz~10MHz)
Frequency stability: 1 × 10-5/day
Maximum measurement sensitivity: better than 25mVrms
Input impedance: 1M ��/35pF (HF channel) 50 �� (UHF channel).

[frequency meter]DF3390A digital frequency meter

2026-6-16 16:19:29

DF3390A digital frequency meter features:

Adopting large-scale frequency measurement integrated circuits and ultra high speed frequency division circuits.
It has four measurement functions: frequency measurement, cycle measurement, cumulative counting, and self checking.
There are two measurement channels, HF and UHF.
Eight digit digital display.
Automatic decimal point positioning.
The unit indicator light automatically displays.
Equipped with overflow indicator.
There is a standard frequency self-test function.
Equipped with a low-pass filter.
Novel plastic casing, compact and beautiful in appearance.

Main technical parameters:

HF frequency measurement range: 10Hz~10MHz
UHF frequency measurement range: 100MHz~2.4GHz
Periodic measurement range: 10Hz to 2.5MHz
Counting measurement range: 108-1 (10Hz~10MHz)
Frequency stability: 1 × 10-5/day
Maximum measurement sensitivity: better than 25mVrms
Input impedance: 1M ��/35pF (HF channel) 50 �� (UHF channel)

[frequency meter]DH1001 Rubidium Atomic Frequency Standard

2026-6-16 16:19:20

The DH1001 rubidium atomic frequency standard is a highly stable frequency source that utilizes the ground state hyperfine energy level transition spectral lines of rubidium isotope atoms to control the frequency of voltage controlled crystal oscillators. It is a passive atomic frequency standard. This instrument is suitable for time and frequency measurement, radio navigation and positioning, tracking of missiles and satellites, astronomical research, geological exploration, network synchronization of digital communication, precision timing and timing, etc.

1. Frequency accuracy:
a) Frequency calibration: The frequency accuracy at the factory should be better than 1 × 10-10.
b) Frequency adjustment range: The frequency adjustment range is greater than 2 × 10-9.
2. Frequency drift rate: The daily frequency drift rate is better than 2 × 10-12/d.
3. Frequency stability:

Sampling time �� 1.0 seconds 10.0 seconds 100.0 seconds
Stability �� y (��) �� 1 × 10-11 �� 3 × 10-12 �� 1 × 10-12

4. Frequency startup characteristics: At 25 ��, the lock time is �� 5 minutes; After 10 minutes of startup, the frequency startup characteristic is �� 2 × 10-10.
5. Frequency temperature characteristics: In an environment of -10 to+50 ��, the frequency variation is �� 3 × 10-10.
6. The influence of geomagnetic field on frequency: The influence of geomagnetic field on frequency is �� 2 × 10-11.
7. Output frequency: 10MHz, 5MHz, 1MHz.
8. Output amplitude (sine wave): The effective voltage value on a 50 �� load is 0.8V to 1.2V.
9. Harmonic distortion: �� -40dB.

[frequency meter]AT-F3300C frequency meter

2026-6-16 16:19:12

Product Introduction
Eight digit LED display
Less switches and simple operation
Fast and high-resolution

Technical indicators:

Frequency range: 10Hz~3300MHz
Display: 8-bit LED
Gate time: 0.01S/0.1S/1S (seconds)
Accuracy: ± 1Hz ± 1 digit ± Time base accuracy
Input sensitivity: 10Hz~10MHz: 20mV (channel 1); 10MHz~100MHz: 25mV (channel 1); 100MHz~3300MHz: 25mV (channel 2)
Input impedance: 1M �� channel 1, 50 �� channel 2
Maximum input voltage: 250VRMS channel 1; 5VRMS channel 2
Maximum aging rate: ± 5ppm per year
Power requirement: AC 220V ± 10% (50/60Hz)
Power consumption: approximately 5W
Size: 210 x 230 x 76 (LxWxH) mm
Weight: 1.8kg

[frequency meter]SX48 series microcomputer frequency meter

2026-6-16 16:19:04

SX48 series microcomputer frequency meter external dimensions: 96 * 48 * 113mm opening size: 92 * 44mm

SX48-F frequency meter

A frequency meter is a multi-purpose, anti-interference intelligent instrument designed with a microcontroller