SZG-20B Handheld tachometerDetailed product description：

1、 Overview:
The SZG-20B contact type handheld digital tachometer is a new generation of intelligent speedometer that uses a new single-chip microprocessor as the main chip. This product has a tachometer with a wide measurement range, high accuracy, and easy use, which can measure rotational speed and linear velocity.

2、 Main technical performance:
Measurement range: 10-25000r/min
Basic error: ± 0.05% xNb
Nb - standard speed value r/min
Note: When the basic error is less than the last word, the error is calculated as ± 1 of the last word.
Display: 5-digit LCD digital display
Sampling time: 1 second
Power supply: Three No. 5 batteries
Operating temperature: 5-40 ℃
Starting torque: not exceeding 4.9 × 10-4 N.m
Dimensions: 166 × 42.5 × 58
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. The down key is the storage key, press this key to call the last measurement of the storage.
3. There are various speed measuring heads in the attachment, suitable for various speed measuring conditions. The conical speed measuring head is used for speed measurement, and the unit of display value is r/min; The disc speed probe is used for measuring linear velocity, and the displayed value is in units of 10cm/min. The long rod is used to lengthen the speed measuring head and extend the detection depth of the speed measuring head.