Digital Tachometer for Chainsaw: Inductive Tachometer Small Motor Tachometer Waterproof with Hour Meter Battery Replaceable Tachometer for Motorcy Lawn Mower

【Battery is easy to change】The battery of the inductive tachometer can be easily replaced and has a long service life, making it a convenient and reliable tool for measuring engine speed. Inductive design: the inductive tachometer is designed to be attached close to the spark plug cable of the engine to ensure accurate measurement of engine speed. It automatically switches to sleep mode when not in use to extend battery life, and wakes up quickly when needed. Wide range of applications: the inductive tachometer can be used with any 2-stroke or 4-stroke petrol engine, making it a versatile tool for measuring engine speed. It is suitable for use in wagon engines with a speed range over 25,000 rpm and can measure speeds from 100 rpm to 30,000 rpm. Automatic reset function at hour zero: the inductive tachometer can display up to 10,000 hours before it is automatically reset to zero, and it can measure up to 99,999 rpm. It also has a system data reset function, making it easy to use and maintain. Easy to use: the inductive tachometer shows the current speed when the engine is running and the total operating hours when the engine is off. It also has a programmable maintenance icon that reminds the user when it's time to change the oil or perform other maintenance work, making it a useful and convenient tool for engine maintenance.