? NEW UPDATED digital engine tach hour meter tachometer maintenance gauge for small engines.
? This self-powered tach hour meter works on these gas engines which firing pattern are 1P1R 2P1R and 1P2R or 2 stroke 1 cylinder, 2 stroke 2 cylinder, 4 stroke 1 cylinder, 4 stroke 2 cylinder and 4 stroke 4 cylinder engines.
? When the engine is on, the display will read the RPM of the engine. When the engine is off, the display will switch to total run time and remains visible. RPM Display from 0 to 20,000 RPM with 10 RPM accuracy.
? Turn on/off function. When screen display blank, press either ??M?? or ??S?? button to turn on the meter.
? The tachometer is powered by one CR2450 lithium battery. No external power connections are required. Wide application: Boat, generator, lawn mower, chainsaw, outboard, motorcycle, motocross, ATV, snowmobile, UTV…
Digital Engine Tach Hour Meter Tachometer Gauge for Small Engine Boat Generator Lawn Mower Motorcycle Motocross ATV Snowmobile UTV

This self-powered tach hour meter has 2 versions:

– “Normal” version:
Non-replaceable battery

– “Standard” version:
Replaceable battery

Note:
– This unit works on these gas engines which firing patterns are 1P1R(Spark plug firing ONCE PER REVOLUTION), 2P1R and 1P2R. NOT for all gasoline engines.
– If the default engine firing pattern “1P1R” doesn’t work, you should adjust firing pattern to 2P1R or 1P2R.

Features:
– This Tach/Maintenance/Hour Meter will keep track of true engine RPM and running time for most of 2/4 Stroke gasoline engines.
– It is powered by one CR2450 lithium battery. No external power connections are required.
– The operation of the tach hour meter is triggered by 5.5 ft. shielded and external lead, wrapped around the spark plug wire of the engine.
– When the engine is on, the display will read the RPM of the engine. When the engine is off, the display will switch to total run time and remains visible.
– You can reset total run hours.
– Turn on/off function. When screen display blank, press either ??M?? or ??S?? button to turn on the meter.

Specifications:
Hours capacity: 99,99 Hours
Hours accuracy: 0.1 hour
RPM accuracy: 10 RPM
RPM refresh rate: 0.5 second
Programmable SERVICE time: 9,999.9 hours
LCD size: approx. 40*11 mm / 1.57 * 0.43 inch
Product size: approx. 80*40*20 mm/3.15*1.57*0.8 inch
Operating battery life: 4~9 years depending on frequency used
Operating temperature: Standard -10??C to +60??C
IP Rating: IP65

Application:
Works on 2 stroke single cylinder/ 2 stroke 2 cylinder / 4 stroke single cylinder/ 4 stroke 2 cylinder/ 4 stroke 4 cylinder gas engines.