Modernize your present apparatus with these precision gauges.

Accurate within 2% of full scale on conventional and transistorized 12-volt positive or negative ground ignition. Heavy duty construction makes it shockproof, vibrationproof and waterproof. Meets the rigid specifications of major manufacturers. Chrome-plated brass with double-strength, curved glass window. Pointer is painted fluorescent red for easy visibility. Will not produce radio interference. Easily to install two wire hook up and comes complete; nothing extra to buy.

Measures 3 3/16" in diameter.

Shock, virbration and waterproof.

Please specify gas(0-6000 rpm) or diesel(0-4000 rpm).

Ship. wt. 1 lb.