The tachometer uses microcomputer(CPU) technique; photoelectric technology， anti-jamming technique and junction laser technique for non-contact measurement of rotation speed(RPM).

Features:
Wide measuring range and high resolution.
Large screen LCD display provides clear reading.
Automatically save Max， Min and last values， also save 96 sets of continuous data.
The tachometer starts to store data after first reading.
Low battery voltage indication.
Smooth housing design， comfortable to hold and use.
The tachometer uses microcomputer(CPU) technique; photoelectric technology， anti-jamming technique and junction laser technique for non-contact measurement of rotation speed(RPM).

Specifications:
Color: Dark Blue + Dark Gray
Material: Plastic
Display: 5 digital， 18mm LCD
Range: 2.5~99999 RPM
Resolution: 0.1 RPM (2.5~999.9RPM); 1 RPM (above 1000RPM)
Accuracy: ±(0.05%+1 digital)
Sampling Time: 0.8s(over 60RPM)
Range Select: Auto-Ranging
Time Base: 6MHz Quartz Crystal
Memory: Max. Value， Min. Value， Last Value
Detecting Distance: 50mm-500mm
Power: 3 * 1.5V AA Batteries (not included)
Item Size: 155 * 70 * 35mm / 6.1 * 2.75 * 1.38in (L * W * H)
Item Weight: 136g / 4.81oz
Package Size: 17 * 11 * 5cm / 6.7 * 4.33 * 1.97in (L * W * H)
Package Weight: 273g / 9.64oz

Package List:
1 * Digital Tachometer
3 * Stickers
1 * Screw
1 * Storage Bag
1 * User Manual (English)