 US & Canada Customers: This product is also available at J&H Aerospace US |
BMK E20 Timer + Band Burner is a compact and efficient standalone motor timer and DT (dethermaliser) solution designed for E20 class electric models and similar small builds.
It combines two independent timers on a single board—one for the motor and one for a DT band burner. JST 1.25mm battery and motor connectors offer a plug-and-play experience, though you may remove them to save weight with fine soldering.
✨ 2023 Black Version – Extra Features
- DT timer now configurable in 10-second increments (previously 1s)
- Motor braking feature to reduce prop drag after cut-off
- Audible beeping signal to help locate model in long grass
- Offset connectors suitable for stick-type batteries
- Lightweight 1.2mm PCB for reduced weight
📄 Download Manual
▶️ Demo Videos
This timer is ultra-efficient and can remain in idle mode for up to 42 days on a 100mAh LiPo battery.
The included Ni-Chrome heater reaches red-hot temperatures with just 1000mA of current. You can also remove the heater and install a DT motor if preferred.
Recommended silicone elastic bands:
⚙️ Features
- Weight: 1.6g
- Dimensions: 31mm × 12mm × 5mm
- Max Motor Timer Duration: 60 seconds
- Max DT Timer Duration: 2500 seconds (41 minutes)
- Timer Steps: 1 second (motor), 10 seconds (DT)
- Timer Tolerance: ±1% typical
- Activation: Hold onboard button for 2 seconds; release to start timer
- Cancel Timer: Click the onboard button
- Motor Ramp: 0.3 seconds (1.0s for units made before 10/09/2021)
- Operating Voltage: 3.0 – 5.0V (1S LiPo compatible)
- Power Consumption: 0.06mA (idle), 0.6mA (countdown), 1000mA (burning, 2s)
- Max Output Current: 5A continuous
- Low Battery Warning: <3.7V (double LED flash in idle mode)