SZG441C non-contact handheld digital tachometerDetailed product description：

1、 Overview:
The SZG441C non-contact handheld digital tachometer is a new generation of intelligent speed measuring instrument that uses a new single-chip microprocessor as the main chip. This product has a tachometer with a wide measurement range, high accuracy, multiple functions, and easy use. It can measure speed, linear velocity, and frequency, and has a counting function. Compared with general non-contact handheld digital tachometers, it has a small size, exquisite design, and better hand feel; When using, stick a reflective mark on the object being measured and align the visible light spot of the tachometer with the reflective mark to measure. This table has maximum and minimum alarm functions, and can store the last measurement value as well as the maximum and minimum values of this measurement.

2、 Main technical performance:
a、 Speed
Measurement range: 10~50000r/min
Accuracy: 10-111999 r/min ± 1 r/min
12000～29999 r/min ± 2 r/min
30000～50000 r/min ± 4 r/min
b、 frequency
Measurement range: 0.1-999.9 Hz
Accuracy: ± 1 r/min
c、 linear velocity
Measurement range: 0.5-9999.9m/min (frequency range: 0.5-1500Hz)
Accuracy: 0.5-999.9m/min ± 0.1 m/min
1000～9999.9m/min ± 0.2 r/min
Measurement distance: 50-150mmm
Display: 5-digit LCD digital display
1000～9999.9m/min ± 0.2 r/min
Sampling time: 1 second
Power supply: Three No. 7 batteries
Operating temperature: 5-40 ℃
Dimensions: 138 × 58 × 23
Weight: Approximately 160g
3、 Operating instructions:
The key directly above is the measurement switch. Press the measurement switch to start the measurement. At this time, the tachometer is in the measurement speed state, with the unit of r/min.
2. Right click on the setting switch, press the setting button to set the maximum and minimum alarm values; When measuring linear velocity, set the diameter; When counting, set the counting modulus. Before each setting, you need to press this key, which is also a shift key.
3. The middle key is the unit key. Pressing the unit key will display r/min → r/s → m/min → ms → count → r/min. This key is also an addition key.
4. The left button is the storage key. After each setting, press this key to confirm and use it to return to the initial state.