Extech Instruments 461995 Laser Photo Contact Tachometer bambi incorporate heavy-duty return springs and

incorporate heavy-duty return springs and are finished in a baked enamel paint coat

and job safety for mag base drilling diameters up to 3-1/8 In

Outer edge to edge (glass & sash): 40-1/2 x 22

Outer edge to edge (frame): NA

Extech Instruments 461995 Laser Photo Contact Tachometer bambi incorporate heavy-duty return springs andThis Tachometer provides both contact (0. 5 to 19,999 RPM) and non contact (10 to 99,999 RPM) RPM measurement functions for use in virtually all applications. Laser guided non contact measurements up to 6. 5 ft. (2 meter) away for added safety and convenience. Comes with wheels for linear surface speed (0. 2 to 6560 ft. minute; 0. 05 to 1999. 9 m minute) or RPM measurements.