1. Product Overview
The ANTUSI A2 is a versatile anti-theft alarm system designed for bicycles, electric bicycles, motorcycles, and scooters. It features a wireless remote control, vibration sensing, IPX5 waterproof rating, and a loud alarm to deter theft.
Figure 1: ANTUSI A2 Alarm System and Key Features
Key features include:
- Brake Sensing
- IPX5 Waterproof
- Wireless Bell Function
- Loud Alarm (105-115dB)
- Find Bike Function
- Power Display
- Built-in 3D displacement sensor for quick sensing of movement, collision, and tilt.
2. Package Contents
Please check the package for the following items:
- 1 x Host (Alarm Unit)
- 1 x Remote Control
- 1 x Tube-shaped bracket silica gel pad
- 1 x Host support
- 2 x Cable ties
- 1 x Charging cable
- 1 x Instruction Manual
Figure 2: Included Accessories
3. Setup
3.1. Charging the Alarm Unit
Before first use, fully charge the alarm unit. The unit has a 400mAh large capacity lithium battery. Blue LED indicators will show the charging status.
Figure 3: Charging the Alarm Unit
The alarm unit can be charged using various USB power sources:
Figure 4: Compatible Charging Methods
3.2. Remote Control and Host Code Setting (Pairing)
If the remote control is not working, you may need to re-pair it with the alarm unit:
- Unpairing connection: Press and hold the buzzer switch on the alarm unit. After the second sound, the pairing link is successfully released.
- Re-pairing connection: Press and hold the buzzer switch on the alarm unit. After the first sound, press any button on the remote control to pair successfully.
Video 1: Demonstration of pairing the remote control with the alarm unit.
3.3. Installation
The alarm unit and remote control can be installed on various parts of your bike or motorcycle.
3.3.1. Remote Control Installation
- The remote control bracket is fixed to the handlebar with a cable tie to facilitate thumb access.
- Just plug in the remote control.
- Press the bottom buckle to take out the remote control.
3.3.2. A2 Host (Alarm Unit) Installation
- Suitable for any fixed position on the bicycle.
- Fix and fasten the host with a cable tie, and cut off the excess cable tie.
- Insert the host into the fixed bracket and tighten the thumbscrews.
- Turn the screw counterclockwise to take out the host.
Figure 5: Installation Steps
Example installations:
Figure 6: Alarm Unit Mounted on Seat Post
Figure 7: Alarm Unit Mounted on Handlebar
Figure 8: Alarm Unit Mounted on Bicycle Frame
4. Operating Instructions
The remote control allows you to manage the alarm's functions.
Figure 9: Remote Control Functions
- Set Alarm / Vibration Sensitivity Adjustment: Use button 1 on the remote control to set the alarm and adjust the vibration sensitivity. There are 3 levels: high, medium, and low.
- Alarm Key / Sound Size Adjustment: Use button 3 to activate the alarm and adjust its volume. There are 3 levels of volume adjustable: high, medium, and low.
- Bell Key / Ringtone Selection: Use button 4 to activate the bell function and choose from 5 different ringtones.
- Electric Bell Unit: This is the main alarm unit (5).
4.1. Power Display
Short press the power button on the alarm unit to display the current battery level via the blue LED indicators.
4.2. Anti-Theft Alarm Functions
The alarm system provides defense deployment and anti-theft alarm functions. When armed, the built-in 3D displacement sensor detects movement, collision, or tilt and triggers a loud alarm (105-115dB) to deter thieves.
Figure 10: 3D Displacement Sensor in Action
Figure 11: Loud Alarm Volume
4.3. Find Bike Function
Even at night, you can search for your bike using the remote control. In an open area, the signal supports a range of up to 50 meters, even through partition walls.
Figure 12: Find Bike Function Range
5. Maintenance
5.1. Waterproof Design
The alarm unit features an IPX5 waterproof structure, making it resistant to wind, rain, and snow. However, it is not designed for submersion.
Figure 13: IPX5 Waterproof Structure
5.2. Battery Life
The alarm unit's 400mAh battery offers power-saving technology, providing standby for 60-90 days in alarm state, and 90-120 days in normal standby. Recharge the unit when the power display indicates low battery.
5.3. Material Quality
The product is constructed from PC+ABS+pure copper material, ensuring durability and strict quality standards.
Figure 14: PC+ABS+Pure Copper Material
6. Troubleshooting
6.1. Remote Control Not Responding
If the remote control does not work, try re-pairing it with the alarm unit using the steps described in Section 3.2.
6.2. Alarm Not Activating
Ensure the alarm unit is charged and properly armed. Check the vibration sensitivity settings; if set too low, it might not detect minor disturbances.
6.3. Low Alarm Volume
Adjust the volume setting using the remote control (button 3) to a higher level.
7. Specifications
Figure 15: Product Parameters
| Parameter | Value |
|---|---|
| Name | Bike anti-theft alarm |
| Model | A2 |
| Net weight | 66g |
| Size | 46x43x41mm |
| Material | PC+ABS |
| Waterproof | IPX5 |
| Battery capacity | 400mAh |
| Battery voltage | 3.7V |
| Sound decibel | 115db (105-115db) |
| Remote control distance | 10-80m |
| Remote control battery | 12V/27A alkaline battery |
| Origin | Mainland China |
| Type | Electric Horn |
8. User Tips
- Always Carry the Remote: After setting the anti-theft alarm on your bicycle, remember to carry the remote control with you to disarm it or use other functions.
- Regular Charging: To ensure continuous protection, regularly check the battery level of the alarm unit and recharge it as needed.
- Optimal Placement: Experiment with different installation locations on your bike to find the best spot for both security and accessibility.
9. Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
