Yooreal Digital Self Powered Tach Hour Meter,Maintenance Hours,Waterproof for Riding Lawn Tractor Generator Compressor Outboards Motor Jet Ski Chainsaw Dirt Bike Scooter

【Usage & Maintenance】 Keep track the run time(TOT) and hours per trip(JOB) of gas engine; Perform the regular maintenance tasks(eg.air filter and oil change) to determine when the time is due;TOT and JOB hours range: 0-999,999 hours,Maintenance time range: 0-1000 hours. 【Idle Speed Adjustment】 Display the engine current RPM value and highest RPM hIt since engine started to adjust the idle speed; Various of engine firing patterns can be chosen for RPM accuracy correction;RPM measurement range:0 to 30000RPM. 【Water/Shock Resistance】 100% epoxy resin sealing craft can be kept it away from the damp or moist, which also prevent the strong shock between transport. 【Installation】Easy to mount it on any proper place by stick-on or screw-on; One wire hook-up design for engine signal detection; It is workable whatever wire shorten or extend(standard wire length:approx.68.8 inches). 【Others】Built-in CR2450 battery with lifetime up 3 years; Reliable technical support and after-sales service(2 years).