SM8237 Digital Gasoline Engine Tachometer Speed RPM Meter Tachometer

Inductive type measure the engine speed by noncontact

Measuring the temperature cooling water in engine by contact

Testing 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 record 300 testing data

Low power symbol automatic indicating

Yellow-green back light

°C and °F Temperature switch function

Rotation Speed Range: 100~40,000RPM

Rotation Speed Resolution: 1RPM

Rotation Speed Accuracy: ±1r/min(100~11,999r/min)    ±2r/min(12,000~19,999r/min)     ±4r/min(20,000~40,000r/min)

Temperature Range: 0~200°C

Temperature Resolution: 0.5°C

Temperature Accuracy: ±2°C

1*A tachometer SM8237