JeffTron Processor unit – V2 [JT-PRO-V2]


JeffTron JT-PRO-V2 Processor unit – V2

Artikelnummer: jefint002 Categorieën:

JeffTron processor unit/ mosfet voor de v2 gearbox met diverse functionaliteiten waaronder:

  • Verschillende fire modes
  • Pre-cocking
  • Active braking
  • Low battery indication

De unit zit in de gearbox en vervangt de trekker contacten. Soldeer skills vereist!

Main parameters:

  • Easy installation inside the Gearbox version 2
  • It preserves trigger mechanical lock in SAFE position
  • Six new shooting modes, one of them is unique compared processor units located outside gearbox
  • Adjustable burst (from factory are 3 shots, it can be changed in the range 1 – 10 shots)
  • Smooth change rate of fire using PWM motor control
  • Pre-cocking function for instant shot in SEMI fire
  • Quick first shot at reduced rate of fire
  • Mosfet with motor active braking
  • Adjustable strength of active braking (can be also disabled)
  • Low battery indication 2S – 4S Li-pol and 3S – 4S li-fe
  • Monitoring current, voltage and temperature of Processor unit components
  • Trigger gun is used for programming this device, motor vibrates as a feedback for user
  • Programmed settings are stored in processor unit memory, so it doesn’t loose changes after disconnection the battery

Fire modes:
– Safe – Semi ? Auto (unchanged gun function)
– Safe – Semi – Burst/Auto
– Safe – Semi – Semi
– Safe – Semi – Burst
– Safe – Semi – Semi (delay between shots, motor vibration when it is ready to fire)
– Safe – Burst – Burst/Auto
– Safe – Semi/Burst – Burst/Auto (unique fire mode only in this drop-in processor unit)


  • Only for electric airsoft guns with gearbox version 2 with switch designed according the Tokyo Marui company
  • Devices without wires, you can use max. 1,5qmm (AWG16) power wires and 0,5qmm (AWG21) signal wires
  • If you are not familiar with soldering to the circuit board, choose device with wiring.
  • Designed for spring M180 and ROF 25bb/s. For higher load please use Extreme processor unit (it is outside gearbox)
  • For right function is necessary to have a functional gearbox cut off lever, selector plate, reverse latch, trigger and trigger block, as it has the standard gearbox
  • Specified for common batteries up to 17V (Ni-xx 8.4 – 12V, lipol 7.4 – 14.8V)
  • Current device consumption only 4.5 mA in idle state
  • Device increases gun rate of fire and battery holds longer, than with basic wiring
  • With active braking in semi fire mode piston isn’t partially stretched, spring is fully released, parts in mechabox aren’t under strain and nozzle locks hop-up chamber in greater part (depends on ROF)
  • In weapons with very high rate of fire (ROF) active break solves multiple shots in semi mode
  • The braking effect is the most powerful with high torque motor
  • In auto fire mode piston stops in random position due the mechabox design. But it stops much faster with active brake

DEVICE INSTRUCTIONS: you can download installation manual in English here
PACKING: Device, screw, pad for screw to keep device in position and installation manual in English

WARNING: Installation of this device leave to expert, who could solder and disassemble airsoft gun. Never user soldering gun!
We can’t guarantee 100% compatibility with all gearboxes, but processor unit will fit into standard and common brand’s gearboxes without larger modifications.







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