Mini Bike Tach RPM Tachometer, EngineTemperature for Street Trail Racing Gauge ATV Motorcycle Snowmobile PWC KartBright Lit easy to see!  

 With Free mounting bracket, a $14 Value

Used by Racers everywhere!IF YOU DON'T WANT TO SPEND $695 FOR A MYCHRON or DigatronAND you want to be able to monitor and performance tune your engine and prevent damageA. Monitor your engine RPM B. Monitor your cylinder head TemperatureC. Want to record and document High RPM during a runD. NEED to know /record High cylinder headTemp (critical for proper jetting)E. Allows you to preset MAX RPM warningsF Allows you to preset MAX tempeture warnings Warnings are hard to miss as unit  screen will flash brightly unit is waterproof  (not for use under water)  Hour meter function, total hours run, time run per session, user programmable for service (oil change based on run time ect)Back lit for full night visabilityComes with under plug Cylinder Head Temp leadComes with Tachometer leadWorks with 1 cylinder up to 8 cylinders engines 2 or 4 strokeThe 2 most important tuning things you need to know when you come off the track  are MAX RPM reached and Max Engine temperature reached. Self Powered, Back Lit  large display easy to read day or nightFunction details,1.measures current temperature2.MAX Temp Recall and User set  Over Temp warning function (screen flashes)3.Temperature C or F display can be set by user4. Temperature sensor  Comes with under plug CHT  lead5.Measures / Displays current engine RPM6.Record and view engine  MAX RPM of each run  7.User set overspeed warning function (screen flashes)8.RPM refresh rate 0.5S9. Keep track total running time10.recording partial running time each run11.maintenance timer can be set for service 0-1000 hours SVC (change oil/plug based on time engine has run)12.save all data automaticly screen flashes for all User set warnings over temp  and over rev.IF you run a class with a maximum RPM This is an ideal tool to tune you engine to meet but not exceed that limit.I will pack these well and ship it USPS for FREE  48 States ONLY,