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T238 Digital Trigger Unit (DTU) Light Control Bluetooth Programmable MOSFET For Gel Ball V3 Gearbox

Product Description
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The T238 Digital Trigger Unit (DTU) Light Control Bluetooth Programmable Mosfet is specially designed for gel ball version V3 gearboxes. With high-speed processor, 8 optical sensors and 2 high power MOSFET chips, this system has many individualised programmable functions, such as piston positioning, binary trigger, multiple-shot and so on. It also has the functions of battery low-voltage protection and gearbox block-up protection.

It can effectively improve the stability, shooting speed and response speed of gearbox, at the same time, it can completely eliminate the problem of gearbox single-shot become multiple-shot. The module uses a maximum of 12.6V batteries. Soldering and wiring are required.


  1. Low battery voltage protection, the default setting is protection OFF. Change the battery when hearing '4~3~2~1' 4 beeps low voltage warning sound.
  2. Block-up protection. When gearbox Block-up occurs, the system stops working and emits an elongated '1~' beep. Please check the gearbox immediately by power off.
  3. Auto-loading function is designed for gel ball blaster magazines with motor inside, when changing the magazine, the magazine motor will run automatically for a period of time, and the length of time can be programmed by 9th option.
  4. This module is able to increase rate of fire, the stability of single-shot and make batteries have higher durability.
  5. The energy that support the active brake function comes from the inertia of motor, stop the piston without delay. The effect of active brake is significant on high torque motor.
  6. The active function prevents the over-spin of gears, this solve the issue that the single shot becomes multiple shot under high voltage. Meanwhile, the spring is fully released in semi-auto mode and parts in gearbox are not under strain, increase the life cycle of gearbox and parts.
  7. The system includes multiple shooting mode, these modes can be selected by fire select switch.
  8. The default position of the piston is adjustable in semi-auto mode. Pre-cocking function can be implementing, zero trigger delay.
  9. Adjustable rate of fire, the gap between two single shots can be programmable, to achieve adjustable rate of fire.
  10. When the DTU is overheated, after the trigger is pulled, the motor will give a beep prompt until it is automatically restarted after cooling.

Note: This product requires soldering and wiring. It is recommended that installation is undertaken by an experienced technician. Damage caused during installation by anyone other than an authorised ViperTac technician may void the warranty.

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