NJW106-Tachometers with NIST Certificate

• 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

Specifications

• Photo (Non Contact)/Contact: Contact