T238 designs and manufactures advanced electronic upgrades for Airsoft, Gel Ball, and Nerf blasters, including digital trigger units, MOSFETs, and tracer units.
T238 is a specialized manufacturer of electronic upgrade components for the Airsoft, Gel Ball, and Nerf hobbies. Founded by enthusiasts in 2018, the brand focuses on enhancing the performance, reliability, and realism of toy blasters through innovative technology. Their product range is widely used by modders and players seeking to modernize their gear with programmable features and improved durability.
The core of the T238 lineup includes Digital Trigger Units (DTU), Electronic Trigger Units (ETU), and programmable MOSFETs. These devices allow users to customize firing modes—such as binary triggers and burst fire—and protect internal components with active braking and battery monitoring. Additionally, T238 produces tactical accessories like RGB tracer units with chronograph functions and high-performance brushless motors. Many of their advanced modules feature Bluetooth connectivity, enabling users to adjust settings and monitor blaster statistics directly from a smartphone app.
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For the V2 Bluetooth version, you can calibrate by connecting the battery and holding the trigger when you hear the prompt tone sequence (1-2-3-3-2-1), repeating three times until confirmed. Alternatively, connect the unit to the T238 app and perform calibration via the settings menu.
A sequence of 4 beeps typically indicates a low battery voltage warning or that the voltage is outside the allowable operating range. You should replace or recharge the battery immediately.
While the T238 Tracer Unit can still detect shots and simulate muzzle flash with regular BBs, the 'tracer' glowing effect requires special phosphorescent BBs or Gel balls to light up in the dark.
After installation, listen for the motor to emit short beeps indicating option numbers. Pull and hold the trigger for 2 seconds after the desired beep count to select that option, then follow the beep prompts to set the parameter.