BMK Gas Timer/RDT is a lightweight (1.5g) timing and remote DT system with outputs for both engine cut and DT/multi-function servos. It’s ideal for gas-powered models needing reliable control over flight phases.
The onboard receiver works with the BMK B1 transmitter, which can be purchased individually or as part of a bundle. Each transmitter has its own code and can control unlimited receivers without re-binding.
📄 Download Manual
📥 Download BMK Gas Timer Manual (PDF)
Includes setup instructions, wiring diagrams and servo configuration tips.
The timer runs on 5V as standard but supports any voltage between 3–15V. Just make sure your servo is rated for the supply voltage to prevent damage.
🧩 Double Servo Wiring
🔧 Single Servo Wiring
📦 Package Contents
- Timer Circuit Board
- Straight and Right-Angled Pin Headers
⚙️ Features
| Max. Timer 1–2–3 Duration | : 60 seconds (120 blinks @ 0.5s) |
| Motor Timer Steps | : 0.5s / 0.2s configurable |
| Max. DT Timer Duration | : 1200 seconds (20 minutes) |
| DT Timer Steps | : 10 second increments |
| Timer Activation | : Hold button 2s (arm), release, hold 2s (motor start), release (launch) |
| Timer Cancel | : Press onboard button |
| Timer Override | : Press B1 Transmitter button |
| Working Frequency | : 434 MHz |
| Receiver Sensitivity | : –116 dBm |
| Range | : ~2750m open field / 500–800m typical with B1 Tx |
| Input Voltage | : 3–15V (servo must match) |
| Output Voltage | : Same as input (servo/motor must match) |
| Power Consumption | : ~10mA (when receiving) |
| Low Battery Warning | : <3.0V (double LED flashes) |
| Dimensions | : 26mm × 16mm × 5mm |
| Weight | : 1.5g (without headers) |
▶️ Video Demonstrations
❓ Questions & Troubleshooting
-
Can I use an external button?
Yes — solder a switch to the EXT button pads to mirror the onboard button. -
Transmitter LED blinking fast?
Replace the battery with a quality CR2032 cell. -
Transmitter not working?
Check or replace the battery first. If still no response, contact support.