DT-2234C+ DigitalTachometer Speedometer

Features:

High accuracy and sensitivity
Wide test range: 2.5 to 99,999 RPM
Large LCD display for clear reading
Automatic test range selection
Memory function: MAX value, MIN value, last value

Specifications:

Display: 5 digits, 18mm LCD
Test Range: 2.5 to 99,999 RPM (r/min)
Resolution:0.1 RPM (2.5 to 999.9 RPM)/1 RPM (over 1,000 RPM)
Accuracy: ±(0.05%+1 digit)
Sampling Time: 0.8 sec.(over 60 RPM)
Test Range Select: Automatic
Detecting Distance: 50 to 500 mm/2 to 20inch (Laser)
Battery: 1*9V battery (6F22) (battery not included)
Power Consumption: Approx.30mA (Laser)
Operation Temperature: 0 to 50 Centigrade (32 to 122 Fahrenheit)
Dimension: 131*70*29mm
Memory: MAX value, MIN value, last value