Description

Speed ​​meter with digital display. Combined optical contactless measurement and mechanical detection with a measuring wheel. Optical measurement: Focus the light beam on a reflective film or other object that contrasts with the rotating object. Reading distance 50–150 mm. Mechanical detection with measuring wheel: Measuring wheel with a diameter of 30 mm. Measures speed or speed.Gently push the measuring tip toward the center of the rotating object to measure the revolutions per minute. Alternatively, push the measuring wheel towards the object to measure the speed. (eg conveyor belt, drive belt or band saw blade.) The memory stores the last measurement as well as the max. and min. values. Requires 4 x 1.5 V LR06 batteries, not included. Specifications: Photographic tachometer 2.5-100 000 rpm Contact tachometer 2.5-20 000 rpm Surface velocity Surface velocity 0.05-2000 m / min 0.02-6560 ft / min Memory Last value Memory Maximum value Memory Minimum value