UT370 series photoelectric digital tachometeris of stable performance, safe and reliable. The device circuit design takesthe single chip as the core. The photo electric revolving speed sampling& processing and uniqueappearance design make the device become the tachometer with excellentperformanceThe tachometer can be used for revolving speed measurement and count.The revolving speed range is from 10 to 99999r/min. The count range is 0~99999. It is applicable to school, factory, environmental protection agency, lab, research institution and automobile maintenance testing and so on. Features:Display Count:99999Data HoldAuto Power Off: Around 15 Minutes Low Battery Indication: under 4.8V MAX ModeMIN Mode AVG Mode USB Interface Specifications:Model:UT372RPM Range:10RPM~99RPM ±(0.03%) 100RPM~999RPM ±(0.04%+2) 1000RPM~9999RPM ±(0.04%+2) 10000RPM~99999RPM ±(0.04%+2) Counts Range:0~99999Max.Input Frequency:10KHz,Bandwith:5%Target Distance:50mm ~200mm General Characteristic:Product Net Weight: