Features:
1.use PIC 16F628a microcontrollers.
2.Do not need batteries, power of itself. Standard FUTABA plug (Black-Negative, Red-Positive, and White-Signal).
3.Use 4 digital tube to monitor the motor speed.
4. Mini tachometer indicates up to 30,000 rpm (Actual RPM = Display Digits x 10).
5.Increased auto test function.
Description:
1.Small volume, convenient to carry.
2.GT Power RC Model Use Ignition Mini Tachometer for Engine RPM Tours.
Specification:
Brand name: G.T. POWER
Item name: Engine tachometer
Color:gray
Working voltage: 3-12V
Working current: 25-60mA
Weight: 16g
Size: 55*20*16mm
Package information:
Package Size:92*67*30mm
Package Weight:50g
Gift box package
Package included:
1 * Engine tachometer
1 * Y Cable
1 * Manual
Notice:
Manual measurement will lead to errors.
Away from heat, fire or direct sunlight. 
