Featuring ABS plastic housing sized for handheld use, Model TAC-L measures rotational speed by using photo sensor to detect reflections from laser or contacting rotatable head to shaft of object. Laser target can record from distance of up to 20 in., and included 5-digit, 7-segment, 0.7 in. high LCD with backlight enables use in dark areas. Supplied with 3 contact rotational heads and contact surface wheel, tachometer offers sampling time of 0.8 sec and accuracy of ±0.05% + 1 digit.<br />
This story is related to the following:Hand-Held Tachometers | Tachometers