GR-8 4 Channel 2.4GHz HoTT Receiver
GR-8 4 Channel 2.4GHz HoTT Receiver

GR-8 4 Channel 2.4GHz HoTT Receiver

P/N: 33504


Specially designed to work only with our X-8N and X-8E surface radios, the Graupner GR-8 is a 4 channel 2.4GHz receiver.  Compatible with our new SUMD V2 technology, it supports Graupner’s exclusive HoTT telemetry protocols and can be programmed to output frame rates as low as 1.5ms for ultra-fast response time.

Its compact size and top connector access makes the GR-8 well suited for any type of installation, especially where space is limited. The GR-8 HoTT receiver makes telemetry speed controllers and telemetry servos easy to install and is packed with standard features such as telemetry for signal strength, receiver voltage, temperature and main pack voltage (available with sensor P/N S8362, sold separately). With a range of up to 1000 meters and full spectrum utilization the GR-8 guarantees a reliable connection even at the most congested race tracks.


  • Up to 75 channel hopping for extreme operating reliability and immunity to external interference
  • Compact and lightweight
  • Supports SUMD V2 telemetry protocol
  • Fast frame rates as low as 1.5ms
  • Wireless setup
  • Fail Safe and Hold function
  • Low power consumption
  • Real-time wireless telemetry data recording
  • Ultra-fast re-binding with HoTT radio 
  • Wide voltage ranges from 2.6V to 8.4V
  • Built-in telemetry for temperatures, receiver voltage and receiver strength monitoring


  • GR-8 Receiver
  • Manual

Receiver works very well. If you are racing a nitro vehicle you will want to use this receiver. It has enough ports for both servos, transponder, battery and temperature sensor. The other nice thing about this receiver is that it outputs the external temperature sensor data to one of the main screens in Fahrenheit. The GR-4 receiver you have to go to the telemetry menu and it only displays in Celsius.
Did you find this helpful?  6 of 6 Found Helpful
Reviewed by:  from Fort Collins, Colorado on 4/18/2016
These receivers are GR 8!
I have 6 of these receivers in my R/C cars that I race every week and they are great. These devices are very user friendly, they bind fast and easy and the range is exceptional. I have never lost a signal. The X-8N transmitter is easy to use, easy to understand and the grip is comfortable for driving. When I needed assistance the customer service was great and they never gave up until the problem was solved.
Did you find this helpful?  4 of 6 Found Helpful
Reviewed by:  from Illinois on 12/9/2016
The Hott system is awsome! Don't know why more people are not using this system with all the control it gives you over your entire electronics package.
Did you find this helpful?  3 of 4 Found Helpful
Reviewed by: (Verified Buyer)  from wallingford ct. on 7/11/2018
I had 4 of this GR-8 used with my X-8N and they worked great, great range, telemetry are great for setup new car and use with Genius pro 180 ESC, Get all info like voltage, amp, temp, and speeds. I also had other Graupner receivers they all work great.
Did you find this helpful?  2 of 3 Found Helpful
Reviewed by:  from Canada on 2/23/2019
Great receiver use them along with the x-8e transmitter. I use the radio in everything from ly losi 5t trucks rock crawler to my sc mod car awsome!
Did you find this helpful?  2 of 5 Found Helpful
Reviewed by: (Verified Buyer)  from Iowa on 11/21/2017
I purchase 2 receives. They were easy to install in my Traxxas Summit and Arrma Talion. The receiver works perfect.
Did you find this helpful?  0 of 2 Found Helpful
Reviewed by: (Verified Buyer)  from Morgan Hill CA on 8/9/2018