Display Size: one-line
Function: 5-digit
Type: LCD (Liquid Crystal Display)
Resolution 0.1 rpm (100 to 999.9 rpm)
0.01 rpm (1 to 99.99 rpm)
1 rpm (1000 to 99999 rpm)
Measuring Range Optical: 1 to 99,999 rpm
Accuracy Optical: ±0.02 % of mv
Mechanical: ±0.2 % of mv
The Testo 470 digital tachometer is an optical measuring range from 1 to 99999 rpm and a resolution range from 0.1 to 19999 rpm. The resolution is speed-dependent, providing 0.01rpm steps below 100rpm, 0.1rpm steps up to 999.9rpm and 1rpm steps above 1000rpm. It features a 5-digit LCD that provides clear, at-a-glance data even in bright workshop lighting