Product Details
The Extech 461920-NIST mini laser photo tachometer/counter measures the rotational speed of objects from 2 to 99,999 RPM and can accurately measure rotating objects up to 1.6 ft away. It features a 5-digit LCD display for RPM readings and includes a counter function that displays up to 99,999 revolutions. The kit includes a 9V battery, reflective tape, and a NIST certificate for certification and compliance.








