Product Name:TachometerProduct Model:RL-HM011NTiming accuracy: 0.1H/1HSpeed range: 0-30000RPMRefresh rate: 0.5SDisplay size: 41*12mmSensing cable length: 1.75mmInstallation: Surface MountWaterproof grade: IP65Timing range: 0-99999HMaintenance range: 0-9999.9HSpeed Accuracy: 50RPMDisplay mode:LCDProduct size: 73.5*46.7*20mmBattery Type: CR2450Shell Material: ABS1. Applied to all gasoline engines, cars with spark plugs: off-road motorcycles, racing cars, cars, ATVs, lawn mowers, chainsaws2. Inductive design, only need to bundle the connecting wire on the spark plug to operate3. Timing range: 0.1-9999.9 hours; support speed range: 15300 RPM4, LCD liquid crystal screen display5, low voltage design, built-in battery power supply, safe and reliable; battery standby life of more than 3 years6. The speed mode can be set and applied to 2-stroke or 4-stroke engines7. The maintenance time reminder function can be set, and the LCD screen flashes to remind when the time is up8, system data reset function, can clear all recorded data