
I bought this unit after returning a unit that was about $10 cheaper but didn't work. This device gives me a very accurate RPM reading when reading the spindle RPM on a CNC router equipped with a spindle encoder and RPM reading. The speed comparison with the CNC machine was within 1% or better. I highly recommend spending the extra $10 on this device.

Handheld Digital Laser Tachometer Non-Contact RPM Meter Motor Speed Gauge Gun Measuring Range: 2
3 Review

π§ Streamline Your Work with Loos Co PT 1 Professional Hands-Free Device
3 Review

FITNATE Tachometer Batteries Reflective Instruction
3 Review

π Neiko 20713A Contact Digital Tachometer
3 Review

Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review

π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review

π Dioxide Controller for Digital Gas Monitoring
5 Review

Digital multimeter RGK DM-12
6 Review