Features:
1. This is a contactless portable digital photo tachometer with stable performance.
2.Wide measuring range from 2.5RPM to 99999 RPM and high resolution of 0.1RPM or 1RPM.
3. High sampling rate, clear LCD display, high measurement accuracy.
4. This tachometer can automatically record the maximum value, minimum value and last value.
5.With automatic range, low battery indication and other functions.
6.Wide use in the field of engine, wheels, lathe, electric fan, paper making, plastic industry, washing machines, automobile making, etc.

Specification:
Model No.: DT-2234C +
Material: ABS plastic
Display: 5-digit 18mm (0.7") LCD display
Measuring Range: 2.5RPM - 99.999RPM
Resolution: 0.1RPM at 2.5-999.9RPM, 1RPM at 1000-99.999RPM
Accuracy: ± (0.05% + 1 digit)
Measuring distance: 50-500 mm / 2-20in
Time Base: 6MHz quartz crystal oscillator
Range Selection: Auto Range
Sampling time: 0.8s (more than 60 RPM)
Power Supply: 1* 9V 6F22 Battery (NOT included)
Power consumption: approx. 30mA
Working temperature: 0℃~50℃(32℉~122℉)
Item Size: 130*68*26mm/ 5.1*2.7*1.0in
Package weight: approx. 150g / 5.3oz

Package List:
1 x Digital tachometer
1 x Blue Bag
3* Reflective Tape
1* User Manual (English)