Mini Rectangular Hobbs Engine Hour Meter, from Datcon

Datcon Mini Hobbs Engine Hour Meter maintains cumulative record of the time on your aircraft. Operates on any DC voltage from 10-80 volts. Rated for temperatures between -65°F to +160°F. Non-reflective flat black case completely seals the shockproof jeweled movement against dirt and moisture.

Dimensions: 1 7/16"w x 15/16"h x 2 3/8"d, Mounting Holes: 1 34" center to center