Chainsaw Tachometer Lawn Mower Speedometer Gasoline Engine Tester<br> 1. Timing range: 1 minute to 99999 (MIN)<br> 2. It is used to measure cylinder two-stroke or four-stroke fuel or gasoline engine (speed RPM), and the cumulative time of engine working timing<br> 3. LCD display, low-voltage design, built-in battery (CR2450) power supply, inductive design, safe and reliable<br> 4. When the gasoline engine is not working, the tachometer will automatically save energy and turn off the display; when the gasoline engine is working, the tachometer will automatically start testing<br> 5. A variety of measurement methods: After installing one end of the electronic wire on the electronic watch case, use a metal clip to clamp it on the spark plug wire sheath for induction measurement; bundle the electronic wire on the spark plug wire sheath and wind it several times for induction To measure, a hand-held tachometer measures 3 to 5 cm near the spark plug wire sheath<br> 6. Applicable to: gasoline engine, engine, chainsaw, lawn mower, glider, motorcycle, automobile, kart, engineering vehicle, snowmobile, ATV, motor boat, grinder, generator, vibrating machine mechanical equipment, etc.<br> 7. Power supply: button battery (including CR2450)<br> 8. Speed mode setting: long press (SET) button, the screen will display 01, 02, 03, 04<br> Sequence, (01, 02, 03 screens, displaying the speed modes corresponding to various engines<br> Stroke) The factory default value is 02 speed mode, release the button with your finger, the data will flash and display for 3 to 5 seconds, then confirm to start the speed mode, and you can measure<br> 9. Shut down: press and hold the (SET) key, the screen will display 01, 02, 03, 04 in sequence; when the screen displays 04, it will flash for 3 to 5 seconds, after it stops, confirm the start<br> 10. System reset mode, press (MODE) button and (SET) at the same time until full screen display (recorded working time and speed data are cleared)<br> 11. Long press the (MODE) button to view historical high-speed data<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store