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Sanwa/Airtronics M12S-RS FH4T 4-Channel 2.4GHz Radio System w/RX-482 Receiver

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Transmitter Case
$57.99 - ProTek RC Universal Radio Case (No Insert) (details...)
Transmitter Case Insert
$16.75 - ProTek RC Universal Radio Case Insert (Sanwa M12/M12S/M12S-RS) (details...)
Transmitter Battery
$46.99 - ProTek RC LiPo Transmitter Battery (7.4V/2800mAh) (MT-4, MT-4S, M11X, M12, M12S) (details...)
Low Price: $399.99
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This is the Sanwa / Airtronics M12S-RS FH4T 4-Channel 2.4GHz Radio System with an included RX-482 Telemetry Receiver. The M12S-RS is very similar to the M12S in terms of response and function, but is slightly more basic to make it a great sport transmitter. 

Main difference from M12S

  • Offset Bracket: Installed
  • Steering Spring: Soft
  • Battery: Dry Battery ("AA" Battery x 4)
  • Back Light: Only White
  • Ear-Phone Jack: Removed
  • Vibrator: Removed


  • FSTN Large Full-dot LCD (128x256)
  • Switchable driving position (Left/Right)
  • Menu Selection
  • Built-in Antenna
  • Car-type selection
  • Cross Movement
  • Model Memory (50)
  • Model Name (14 Letters)
  • Mode (Select/Copy/Clear/Sort)
  • RF Mode (FH4T/FH3)
  • Response Mode (NOR/SHR/SSR)
  • Bind
  • Servo Monitor
  • Key Assign (SW/TRIM/DIAL/LEVER)
  • Buzzer
  • LCD Contrast
  • AUX Type (AUX/AUX1/AUX2)
  • Point AUX
  • 4WS AUX
  • TRIM Type (center/parallel)
  • Battery Alarm
  • Log (REC/RPM/VOLT/TLM1/TLM2THPoint/RX Mode)
  • Boot Menu
  • User Name (14 Letters)
  • Information
  • EPA
  • Servo Reverse
  • Fail safe (Radio wave/Battery)
  • Time (rLap/Interval1/Interval2)
  • Dual Rate (ST/TH/BR)
  • Curve (EXP/ARC/CRV)
  • Point Curve
  • Speed
  • ALB
  • BR Mixing
  • Ackerman ST
  • C-MIX1/C-MIX2
  • Safety Link
  • Custom Menu
  • Direct Model Select
  • TH Type
  • Offset
  • CH Set
  • Calibration (ex-VR): ST/TH/LEVER
  • Mechanical Rudder Angle Adjustment


  • Sanwa SSL System
    • When used with compatible RX-472, RX-482, Super Vortex Series, SV-Plus Series, the setting of ESC etc. by Transmitter is available through SSL functions while driving.
    • Since the setting can be done without the stop of car, the detailed adjustment in accordance with Race conditions is available without interruption of Intervals and the change of machine conditions.
  • Response of Telemetry System
    • It is often said that telemetry system reduce response speed. However, SANWA Original Data Processing and Algorithm Design makes Telemetry possible without response speed reduction. This Excellent Telemetry System has no response speed reduction.
    • With their telemetry system, the precious race data will help the next race setting and driving.
  • Response Mode
    • Please do not use Analog Servo for SHR mode or SSR mode. If analog servo is used for SHR mode or SSR mode, the servo will be broken and will not work. Digital servo (SRG series, Digital ERS series, SDX series) can be used both for NOR mode and SHR mode.
    • SSR mode can be used only by SRG & PGS series servo.
    • In SHR or SSR mode, BL-FORCE, BL-SPORT, F3300, SBL-02 and SBL-03CR do not work. Please use NOR mode for the above ESC.

This product was added to our catalog on June 14, 2017

Thursday, Mar 15 2018 (about a year ago)
Sanwa/Airtronics M12S-RS FH4T 4-Channel 2.4GHz Radio System
This radio is awesome! It has the same internal specs as the $500 M12S..the only thing different between this radio and the more expensive option is that it's extra drop down or angle parts, no chrome buttons..anything to add extra cost or tune ability is removed and it comes out of the box with the small wheel, drop down and 4AA battery tray...I bought the SANWA branded life pack and I was set, same speed and same tenability as the M12S..just chepaer..awesome radio.
Verified Owner
Friday, Mar 2 2018 (about a year ago)
Sanwa/Airtronics M12S-RS FH4T 4-Channel 2.4GHz Radio System
Amazing transmitter, and worth the money. I always wanted an M12S but couldn’t justify the price. When Sanwa released this radio I thought an M12 might finally be within my reach. I am so happy I spent the money, this radio has all of the good things from the M12S and still feels like a top shelf unit. I recently tried the Spektrum DX5R and the Futaba 4PV. Both were very nice and are worthy of mention, but I feel the M12S-RS is on another level. The build quality, feel, and performance are truly pro-level. My only gripe is the battery tray flops around inside the housing, so I solved this by cutting out two foam strips to use as spacers. This is an amazing radio, and if you can’t swallow $500+ for the M12S then give this one a look, you won’t regret it.