Extech RPM33: Combination Contact/Laser Photo Tachometer

RPM33: Combination Contact/Laser Photo Tachometer Quickly measure RPM, surface speed and length with one tool Features Large 5 digit backlit LCD display Microprocessor based with quartz crystal oscillator to maintain high accuracy Store/recall 10...

Extech 1/8 DIN Panel Tachometer

Continuous & accurate readings from 5 to 99,990rpm Measure rpm from 5 to 99,990rpm with microprocessor quartz crystal accuracy of 0.05% Large LED display updates 1/sec (rpm<60) Resolution: 0.1rpm (5 to 1000rpm), 1rpm (1000 to 999rpm), 10rpm...