Use P1C16f628a microcontrollers
2:Do not need batteries, power from the ignition
3: Standard Futaba Plug(Black-negative Red-Postive and White-Signal)
4:Using high-brightness LED digital tube
5:Input voltage range: 3.5V -8.4V
6:Current consumption 25mA-60mA
7:Mini tachometer indicates up to 30000rpm
8:Actual RPM=Display digital *10
9:Body size:41mm L*17mm W*12mm H
10: Window size:30mm L*15mm H
11:Weight: 8.5g(0.3OZ)

Instructions:
1:The Y wiring tandem between in the Hall sensor and the ignition
2: The tachometer plug the other end with Y wire
3:Connected to ignition power supply and can be displayed

Note: That connecting plugs do reinforcement.To preven vibration. the hall
sonsor& tachmoter wire leave from the ignition high-voltage wire, And re-
ceiver wires over 30cm

Connection tachometer is not recommended after the use of the flight, Best
to remove the Y wire to restore the original sensor connection

If ignition have an additional tachometer pinout,You must be connected to
dedicated tachometer signal wire

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