Product Features

Optical operation - No physical connection required

Extremely accurate (+/- 1 RPM) at all speeds with no adjustment necessary

Direct display for 2,3,4,or 5 bladed props

RPM Range 240 - 7000 RPM

Standard 9 Volt battery lasts 150 Hours

Automatically turns power off if you forget

Low battery indicator

Digital signal filtering for a stable display

Compact 3.8 x 2.4 x 1.5 inches for portable use weighs just 4 Ounces

Designed and built in the USA by Pilots for Pilots

The all digital TruTach II works on production aircraft as well as ultra-light and homebuilt applications with no connection to the aircraft necessary. It's usable inside or outside the cockpit for convenient operation and measures RPM at any power setting. It works on single or multi-engine propeller aircraft having 2, 3, 4, or 5 blades. Only two controls: on-off and blade quantity select. Never needs adjustment. Check calibration anytime with a standard light.

Specifications:

1 lbs (0.5Kg) shipping weight.