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Feature

No-Contact Gun type digital tachometer with stable performance. ** important: Package included reflective sheeting tape, you must stick this tape(cut-to-size) onto the object and begin measure)**
Automatic and Manual Measurement Functions. Measuring Range: 2.5 to 99999 RPM.
Readings are displayed on a large, easy-to-read LCD screen; stores last, minimum, and maximum reading; features auto-zero adjustment
Measure RPMs of motors, machinery such as circular saws, speed of a lathes and other rotating devices
Accurate to +/- 0.02 percent and capable of measuring at a distance from 2-20 inches(50-500mm); RPMs measured over 0.5 second sampling time

Description

Features:
Mini handheld gun type design
Automatic and manual measurement selectable
Data record and recall
MAX/MIN/AVG value record function
Record time interval setup function
LCD with white backlight
Data hold function
Auto and manual power off
Low battery indication

Specifications:
Measuring Range: 2.5-99999RPM
Resolution:0.1RPM, at 2.5~999.9RPM;1RPM,at 1000~99,999 RPM
Accuracy: +/-0.02%+1digtal
Measuring distance: 50~500mm
Sampling Time: 0.5s(above120RPM)
Operation temperature: 0 to 50C(32 to 122f)
Operation humidity: 10 to 90%RH
Storage temperature: -10 to 60C(14 to 140f)
Storage humidity: 10 to 75%RH
Dimension: 145*90*35mm
Weight: 120g(included battery)

Package included:
1 x Digital Tachometer
1 x English User Manual
1 x Protective bag
1 x Reflective sheeting tape
** Important ** You must cut to size the reflective sheeting tape and stick the object you want to measure, this tachometer cannot work if you miss this step.