Tachometer: 1.Low battery alarming, 2.Yellow-green back light, 3.Memory the (max ,min ,last )value , 4.Can store 300 testin.

Tachometer:1.Low battery alarming,2.Yellow-green back light,3.Memory the (max ,min ,last )value ,4.Can store 300 testin.

PETROLIC ENGINE TACHOMETERSM8237 Inductive type measure the engine speed by noncontactMeasuring the temperature cooling water in engine by contactTesting the rotate speed of multi-cylinder in same time,

or testing one of cylinder rotate speed .Testing the rotate speed used to 2 stokes and 4 strokes,Can set the cylinder in 2,3,4,5,6,8,12 or set the impulse of each rotation.Memory the maximum value,minimum value and last value Can store 300 testing data,Low battery alarmingYellow-green back light°C and °F Temperature switch function

Rotation Speed Resolution:±1RPM ±1RPM(100-11999r/min)±2RPM(12000-20000r/min)

Rotation Speed Range:	100-19999RPM
Temperature Range:	0-200°C
Temperature Resolution:	±0.5°C
Temperature Accuracy:	±2°C

Digital Tachometer