GR-12L 8 Channel SUMD 2.4GHz HoTT Receiver

3 Review(s)
$40.90 $49.10
P/N: S1037.LOSE
Availability: Out of Stock


The Graupner GR-12L SUMD receiver provides 8 control channels output using the SUMD digital output signal. The HoTT protocol provides hopping over 75 channels using the 2.4 GHz band making it therefore very reliable with minimal influences of external interferences.

The GR-12L SUMD receiver has built in telemetry for RSSI, temperature and receiver voltage and can be expanded with additional HoTT modules such as GPS, voltage modules and more.

The GR-12L SUMD can operate under a wide range of voltage levels (2.5V to 8.4V) and with the enhanced receiver sensitivity the operating range has been substantially increased. The very compact design and low weight (5 grams) makes it suitable for any multirotor, airplane or helicopter RC model.

Using the GR-12L SUMD is straightforward and all what is needed is to connect the SUMD output to your flight controller like Betaflight, Raceflight, Potenza, Bavarian Demon or flybarless controllers like Spirit, V-Stabi, Microbeast, Ikon, Neuron, 3Digi or any SUMD compliant control unit.


  • Up to 8 control channels using SUMD
  • Wide voltage operating range (2.5V-8.4V)
  • LED indicates receiver state
  • Increased reception sensitivity
  • Light weight and compact design
  • Programmable hold and failsafe
  • External connection for telemetry modules.


  • GR-12L SUMD Receiver

Fantastic upgrade to the Gr-12 Rx line. Had been using the box version in my quadcopter builds, and they worked but were larger than desirable. New form factor is perfect for small builds, and so far performance is just as great as the larger Rx.
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Reviewed by:  from Oakland on 7/10/2017
Gr-12L receiver
I bought this receiver to use with a ikon2 fbl on my G570 and a Graupner 100a hv +T esc . I can't believe how amazing this little receiver is for that purpose, it has 2 wires to connect and is the lightest and smallest full range receiver I have ever used. The price is very reasonable and I have already bought several more of these for my other models. I would recommend this receiver to anyone who is using a fbl with single line input.
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Reviewed by: (Verified Buyer)  from Denver co on 1/11/2018
Fantastic Little Quad Receiver
This is a great little receiver for mini quads. I'm getting fantastic range and performance out of it. It is pretty small and lightweight, but I wish Graupner had one a little smaller and lighter for the 2.5" and smaller builds. For 3" quads and larger it works very well though.
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Reviewed by: (Verified Buyer)  from Alabama, USA on 6/19/2018