GOLD Edition
JETI model celebrated 25th anniversary this year and released Limited Edition of DC-24 and DS-24.
MEZON PRO now available

The MEZON PRO controllers are a successor of the previous product line of the Mezon speed controllers. They contain a lot of new features and improvements, such as comfortable configuration via the JETI DC/DS transmitters, proportional brake, bidirectional motor operation, EX Bus configuration etc.

MEZON PRO controllers are available in OPTO, standard (BEC) and LMR versions. 

Available products

REX V1.12 & REX Assist V1.10

Lots of new features have been included in the latest updates for standard REX and REX Assist receivers:

Duplex REX Assist V1.10
Comes with a lot of fixes and enhancements. Horizon and Training flight modes have been optimized, introducing 2D flight mode. To see a full list of features and modifications please visit the release notes.


Duplex REX V1.12
With EX Bus backup and signal forwarding.

Download here

All updates can be handled easily by JETI Studio. Please download the latest device definitions to your transmitter (simply update the transmitter to V4.28 via JETI Studio, the necessary files will be downloaded automatically).


Download JETI Studio



MEZON 55 PRO opto

Art. No.: 
EAN: 8595245900793
MEZON 55 PRO opto
Weight [g] 68
Dimensions [mm] 26 x 18 x 83
Sustained current [A] 50
Telemetry Yes
Operational temperature [°C] -10 ... 85
Supply Voltage [V] 5 ... 51
Batteries LiXX 2 ... 12
Resistance in conducting state [mΩ] 2 x 1.2
Cable crossection (input/output) [mm²] 2.5 / 2.5

Files for download

Manuals - MEZON PRO

MEZON PRO.BIN - Configuration file for DC/DS transmitters (copy to Devices folder)
MEZON PRO Quick Guide - Quick guide [CZ/DE/EN/FR]

Update - MEZON PRO

Mezon Pro V1.06 - MEZON PRO firmware update (12/2018). Brake issue solved (MEZON 80 PRO)

Powerful MEZON PRO controllers can be used in a wide variety of applications. They come an optocoupler, full JETI Duplex EX telemetry and programmability via the Device Explorer of JETI Duplex DS/DC transmitters. Forward/reverse motor operation is also possible.


In addition, the throttle channel can optionally be connected to the receiver "EX Bus" port. A separate output pin for a throttle channel is therefore not necessary at the receiver, telemetry and control signals are transferred in both ways via just a single cable.



  • Compact size
  • Setting via the Device Explorer of the JETI DC / DS transmitter
  • Real-time telemetry via JETI Duplex EX Bus (perfect for JETI DC / DS transmitters)
  • Telemetry data: battery voltage, battery current + BEC current, used battery capacity, RPM, PWM, controller temperature
  • Telemetry data reset by any transmitter switch
  • Powerful BEC, ideal when using JETI Assist or other gyro systems in a model
  • BEC with a wide input voltage range and adjustable output voltage
  • Activation of the throttle channel from the EX Bus is possible; the receiver then does not have to offer its own slot for the throttle channel.
  • Programmable with JETBOX
  • Operating modes: Model aircraft, forward / reverse operation
  • Proportional brake with a definable braking point at the throttle stick
  • F3A brake conveniently adjustable via the Device Explorer
  • Heat sink for long engine run times
  • High efficiency
  • Firmware upgrade possible
  • Wide range of adjustable parameters






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Recommended connection of the MEZON PRO controller (EX Bus):


Recommended connection of the MEZON PRO opto controller (EX Bus)



Recommended connection of the MEZON PRO controller (standard):


Recommended connection of the MEZON PRO opto controller

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