This digital Tach/Hour Meter will keep track of engine RPMs and running time for all types of gasoline powered engines. The unit is powered by an internal lithium battery(CR2430) so no external power connections are required. The operation of the Tach/Hour Meter is connected by 5 ft. insulated wire. You will wrap the RPM wire around the spark plug. The Tach/Hour Meter is activated by the spark of the engine. Because the unit is activated by the spark of the engine it will keep track of the actual hours/duration of operation. This Tach/Hour meter is useful for maintenance or warranty applications for any type of gasoline powered engine.

Features:
Easy to install.
LCD digital display.
Shows both engine RPM and hours of operation.
Reads up to 60,000 RPM.
No power connection required (internal battery CR2430).

Specifications:
Color: Black
Display: LCD Digital
Power Supply: Internal Battery(CR2430)
Water-proof/Dust-proof Grade: IP 68
Item Size: 75 * 38 * 20mm / 2.95 * 1.5 * 0.8in 
Item Weight: 65g / 2.31oz
Package Size: 17.5 * 10 * 2.5cm / 6.89 * 3.94 * 0.98in
Package Weight: 83g / 2.9oz

Package List:
1 * Digital Tachometer