The GATE ASTER II Bluetooth® EXPERT ETU unit for V3-compatible gearboxes is the younger sibling of the well-known TITAN II Bluetooth® unit. Built-in Bluetooth 5.2 technology gives you direct access to ASTER II Bluetooth® settings, AEG telemetry, and the ability to use the Gate smartwatch app, tactical STATUS computer, and other upcoming GATE ecosystem devices. GATE ASTER II is versatile: today you can use the ASTER II Bluetooth® unit with an AEG and tomorrow with a single-solenoid HPA unit (Gate Pulsar H, Gate Pulsar S, Wolverine Inferno, PolarStar Jack). This makes the ASTER II Bluetooth® unit, right after the TITAN II Bluetooth®, the most versatile ETU unit in the world, installed in place of the trigger mechanism.
With ASTER II, you can adjust trigger sensitivity from a light touch to full movement. Programming the circuit is easy via Bluetooth® connection using the GCS app. ASTER II Bluetooth® is compatible with popular brushless motors up to 11.1 V input voltage. ASTER’s smart fuse protects the AEG battery, motor, and controller. This feature, combined with optical sensors, makes ASTER II Bluetooth® one of the most durable ETU units on the market.
ASTER II Bluetooth® is coated according to the MIL-V-173C military standard, making it weather-resistant.
Excellent value for money:
ASTER II Bluetooth® offers full flexibility with Bluetooth® 5.2 and compatibility with both AEG gearboxes and HPA units. You can update the firmware and gain new options, connect accessories, check telemetry – straight out of the box with no extra cost.
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GCS app for iOS, Android, macOS and Windows
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GCS app for your smartwatch (Wear OS or watchOS) – real-time data such as BB counters and remote trigger!
- Compatible with both AEG gearboxes and single-solenoid HPA units
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"Hair-trigger" – up to 35 trigger sensitivity levels for the first millimeter (0.04 inch) of movement and up to 680 across the full range
- Adjustable trigger reset (hysteresis)
- Top-tier automatic pre-cocking
- Free firmware updates online
- ASTER II Bluetooth® is part of the GATE ecosystem
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Lowest power consumption on the market – deep sleep mode with only 140 µA current draw prevents battery drain during storage
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Built-in voltage boost converter for trouble-free operation with weaker batteries and improved switching efficiency
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3.75 V ready – ASTER II Bluetooth® operates at extremely low voltage (down to 1.2 V during a shot), crucial for high-tuned electric guns where voltage drops significantly under load
- Sensor supports Infinite Torque-up, DSG, SSG, 19-tooth and standard gears
- Option to use a mechanical trigger lock
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Extended compatibility with brushless motors – works perfectly with all popular brushless motors up to 11.1 V batteries
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Multi-function programmable I/O port – allows connection of cutoff lever sensor, magazine sensor, and more
What makes ASTER II Bluetooth® so special?
Everything you need straight out of the box:
- Built-in Bluetooth® 5.2
- Interference-resistant trigger detection algorithm
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Hair-trigger out of the box – Up to 35 sensitivity points for the first millimeter (0.04 inch) of movement and up to 680 across the full range.
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Extra protection against interference – Multi-layer PCB with EMC shielding.
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Automatic pre-cocking: 0-5
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Unlimited trigger sensitivity adjustment – Plus, you can now adjust trigger reset (hysteresis).
- Enhanced cycle detection
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Active brake adjustment: Adaptive / 1-100%
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343 selector modes – All possible combinations: SAFE, SEMI, BURST, BINARY, BURST/AUTO, AUTO & SEMI RAMPING.
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GCS app enables firmware updates via the internet, meaning instant access to improvements.
What is an ETU?
It is an electronic trigger unit that replaces trigger contacts and the cutoff lever, taking control of your AEG.
What is self-learning automatic pre-cocking?
- Pre-cocking gives you a trigger response similar to a real firearm.
- Automatically sets the piston to the correct position.
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Easy to use – simply choose one of five levels: 0-5.
- Automatically adapts to battery voltage and rate of fire.
