Digital Non-Contact Handheld Laser Photo Tachometer Motor speed Gauge Tester Rotational Record(60 Data)MAX/MIN/AVG ±0.02%+1 Accuracy Measuring Range:2.5-99999RPM distance:50~500mm with Reflective Tape auspowers_batchone Easy to InstallFemale thread knurled

Easy to InstallFemale thread knurled nuts are suitable for mounting into tapered holes by heating or for molding during injection molding

The surface has been Nickel Plated for anti-rust purpose

Mark every size: These springs in each grid has a corresponding size mark

Package: 1pcs PWM 4-Wire Fan Temperature Controller 1pcs NTC Temperature Sensor 1pcs Buzzer Note: 1>

5mmX2mm (for RAMPS

Digital Non-Contact Handheld Laser Photo Tachometer Motor speed Gauge Tester Rotational Record(60 Data)MAX/MIN/AVG ±0.02%+1 Accuracy Measuring Range:2.5-99999RPM distance:50~500mm with Reflective Tape auspowers_batchone Easy to InstallFemale thread knurledDigital Non Contact Handheld Laser Photo Tachometer Motor speed Gauge Tester Rotational Record(60 Data)MAX MIN AVG 0. 02%+1 Accuracy Measuring Range: 2. 5 99999RPM distance: 50~500mm with Reflective Tape Tachometer is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The device usually displays the revolutions per minute on a calibrated analogue dial, but digital displays are increasingly common. Ideal for