Thermco Multi-Functional Photo/Contact/Surface Tachometer

Thermco Multi-Functional Photo/Contact/Surface Tachometer, Accuracy: 0.05 %, Resolution: 0.1 to 1 rpm, -55 to 250 deg C Temperature Range, 4 x 1.5 V AA Batteries Power Supply, 5-3/8 in LCD Display Type. One instrument combines the measurements in RPM of many Lab instruments such as centrifuges, motors and stirrers. The measurement is made in 1 to 3 sec and the memory feature allows recalling the maximum, minimum and the last reading. One end of the tachometer provides contact readings with a rotating spindle; the other end makes touchless readings with a light beam utilizing self adhesive tabs. The ACCPTC900 utilizes a precision quartz crystal for an accurate time base. Display is 5-3/8 in LCD - TRMC