V-ROOT HT50-02 HAND TACHOMETER

SPECIFICATIONS
Measurement Range: 6.0 to 99999.9 RPM; 3.00 to 3000.00 meters or
yards per minute using in-contact adapter and appropriate wheel
Resolution: 0.1 RPM
Accuracy: RPM: ± 0.01%, Surface Speed: ± 0.05 %; and ± 1 digit
Optical Range: 50 to 300 mm (2 to 12 inches) using reflective tape
Update Time: 1 to 10 seconds sample time
Display: 6 digit LCD; low battery and reflective light input indicators
Display Hold: 3 minutes from last measurement then auto power-off
Power Requirements: (4) 1.5V batteries, AAA size, included. 20 hours
continuous measurement
Operating Temperature: 40° to +104°F (5° to +40°C)