Tachometers with NIST Certificate – Contact

Description

Photo/contact tachometer
Patented design incorporates both a photo and a contact tachometer into one precision instrument
Ranges: from 0.5 to 20 000 rpm in contact mode; from 5 to 99 999 rpm in photo mode; surface speed from 0.05 to 1999.9 mpm (0.2 to 6560 fpm)
Linear surface speed measurements are 0.2 to 6560 fpm or 0.05 to 1999.9 mpm
Automatically holds last reading for five minutes and recalls min. and max. readings
Characters on the large 5-digit display reverse direction depending on which measurement mode you are in
Provides accuracy to 0.05% and permits readings to a resolution of 0.1 rpm in either photo or contact mode