Features:
-Hold the maximum value,minimum value,average value and the last measured value.
-Fully display operation instruction and unit sybol,which is concise and explicit.
-Wide measuring range and high resolution.
-Battery low power indication,LCD backlight display,and auto shutdown.
-Adopt the latest microprocessor technology and laser technology,which enables the instrument to be more intelligent and reliable.
-Oversized screen LCD display,with clear indication.
-Solid and delicated structure.The entire machine adopts durable and optimized electronic elements,and the shell adopts light and solid ABS plastic,with beautiful appearance and convenient use.

Specifications:
Condition: 100% Brand New
Model: GM8905
LCD: 5-digital LCD with 18mm character in height
Unit: Rpm
Measuring Range: 2.5-99999rpm
Resolution: 0.1rpm (2.5-999.9rpm); 1rpm (1000-99999rpm)
Basic Accuracy: ±(0.1%n+)rpm, (2.5-999.9rpm); ±(1%n+)rpm, (1000-99999rpm)
Power: CLASS II 2 5mW
Sampling Rate: 1second/time
Measuring Distance: 50-500mm
Time Base: Quartz Crystal
Auto Power Off: 1 minute without any operation
Operating Environment: 0-50℃; 32-122℉; 10%-90%RH
Storage Environment: - 10-80℃; - 14-176℉; 10%-75%RH
Power: 2 * 1.5V AAA batteries (Not included)
Weight: Approx. 154g / 5.4oz
Size: Approx. 55 * 28 * 125mm / 2.2 * 1.1 * 4.9in
Packing list:
1* Laser Tachometer
3* Silver Reflective Tag(200mmx12mm)
1* Instruction manual
1* Color box