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BMK Gas Timer/RDT

Regular price £35.99

BMK Gas Timer/RDT is a lightweight (1.5g) RDT/timer solution with DT/Multi-Function Servo and Engine Cut servo outputs. 

The onboard receiver is fully compatible with our BMK B1 transmitter, which can be purchased separately or as part of a bundle. Each transmitter has a unique code, and you can connect it with an unlimited number of receivers.


The timer is designed to function with 5V voltage, but it is also compatible with any power supply ranging between 3-15V. Please ensure that your servo is capable of supporting the supply voltage.

Double Servo Wiring

Single Servo Wiring

Package Content:

  • Timer Circuit Board
  • Straight and Right-handed pin headers



Max. Timer 1-2-3 Duration : 60 seconds (120 blinks @ 0.5s intervals)
Motor Timer Steps : 0.5 s / 0.2s configurable
Max. DT Timer Duration : 1200 seconds/ 20 minutes (120 blinks) 
DT Timer Steps : 10 seconds increments
Timer Activation Method : Press the button for 2s(Arming), Release, Press for 2s(Motor Starts), Release(Launch/Timer starts)
Timer Cancel Method : Click the onboard button
Timer Override : Click the BMK Remote B1 Transmitter Button
Working Frequency : 434 MHz
Input Sensitivity : -116dBm
Range : 2750m (calculated typical open field outdoor range)
~500-800m. with B1 Tx units under the general conditions. 
Input Voltage : 3-15v (compatible servo required)
Output Voltage : Same as the Input Voltage. Use compatible servo/motor/etc
Power Consumption : ~10mA @ Receiving
Low Battery Warning : <3.0v (double flashes instead of single)
Dimensions : 26mm x 16mm x 5mm
Weight : 1.5g (without pin headers)




Questions and Trouble Shooting

  • Can I use an external button for the timer?
    Yes, just solder a button between the ext. button pads to extend the onboard button features.

  • The Transmitter LED is blinking fast.
    Replace the battery with a quality CR2032
  • The Transmitter is not working.
    Check the battery / Replace the battery