small engine tachometer :The digital tachometer can accurately measure the rotational speed of all strokes (cylinders 1-8),including 2-stroke or 4-stroke gasoline engines, RPM Range of 10-15000 rpm,Accuracy with 1%，which enhance the engines safety and reliability Energy saving Mode: when the engine is started, the current RPM is displayed. When the engine is off, the total run time is displayed. Use the service icon to configure programmable service times to remind you when to change oil or perform other services. STEADY CLAER READING:LCD liquid crystal display, low voltage design, built-in button power supply method, inductive design, safe and reliable. WIDELY APPLY AS ENGINE MAINTENANCE TOOL:You can use the small engine tachometer as a maintenance Reminder for Lawn Mower Generator Cropper Motorcycle ATV Outboard Motor Dirt Bike Chainsaw;The Digital Tachometer is widely used to measure all any gasoline engine(cylinders 1-8),inchuding 2 or 4-stroke gasoline engines EASY INSTALLATION: With the inductive function and the copper clips ,you can get the working signal by 2 ways (inductive or pickup Cable);When using the cable free function,you can mount or hold the tachometer nearby the spark cable ; When using the cable,just clamp the spark plug cable with the clip to receive the signal, safe and reliable Digital Tachometer - Chainsaw Tachometer Tach Gauge Digital Display Pulse Speedometer for Chain Saw Cropper Generator Lawn Mower RV ATV Dirt Bike Motocross Boat Tractor