Product Name:Tachometer Product Model:RL-HM011N Timing accuracy: 0.1H/1H Speed range: 0-30000RPM Refresh rate: 0.5S Display size: 4112mm Sensing cable length: 1.75mm Installation: Surface Mount Waterproof grade: IP65 Timing range: 0-99999H Maintenance range: 0-9999.9H Speed Accuracy: 50RPM Display mode:LCD Product size: 73.546.7*20mm Battery Type: CR2450 Shell Material: ABS Applied to all gasoline engines, cars with spark plugs: off-road motorcycles, racing cars, cars, ATVs, lawn mowers, chainsaws Inductive design, only need to bundle the connecting wire on the spark plug to operate Timing range: 0.1-9999.9 hours; support speed range: 15300 RPM 4, LCD liquid crystal screen display 5, low voltage design, built-in battery power supply, safe and reliable; battery standby life of more than 3 years The speed mode can be set and applied to 2-stroke or 4-stroke engines The maintenance time reminder function can be set, and the LCD screen flashes to remind when the time is up 8, system data reset function, can clear all recorded data