Features:
Digital display with black face and blue LED.
Used to measure the RPM of automobile engine.
Measurement range is 0~9999RPM.
Red warning light.
High accuracy and easy operation.

Specifications:
Color: Black
LCD size: 52mm / 2in
Unit: RPM
Measurement range: 0~9999RPM
Warning point: 5000RPM
Power: 12V DC, Max. 0.3A
Tachometer size: 5.7 * 5.5cm / 2.2 * 2.2in (diameter * height)
Tachometer weight: 72g / 2.5oz
Package size: 17 * 12 * 7.8cm / 6.7 * 4.7 * 3.1in
Package weight: 205g / 7.3oz

Package including:
1 * Tachometer
K975B