Induction Unlocking Car Anti-theft Device with 120dB Siren and 80m Remote Range

This induction unlocking car anti-theft device provides a straightforward way to protect your vehicle from unauthorised access. It uses a 370MHz radio frequency remote control that works over 80 metres, giving you ample distance to arm or disarm the system. When triggered, the built-in 120dB speaker emits a loud alarm that can be heard clearly, helping to deter theft and alert those nearby. The unit operates on a standard 12V DC vehicle electrical system, making it suitable for most cars, and draws minimal quiescent current to preserve battery life when the engine is off. This device is a practical addition for anyone seeking an affordable and effective vehicle security solution.

Features and Construction

The anti-theft device combines robust materials with a modular interface for straightforward installation. Its components are designed for reliable everyday use in a vehicle environment.

Material and Build

The main unit is constructed from metal, plastic, and glass fibre board. The metal and plastic housing provides physical protection for the internal electronics, while the glass fibre board serves as the circuit substrate, offering good insulation and mechanical stability. These materials balance strength with light weight.

Interface and Wiring

The host interface uses a 4+9+2+2+3+3 pin header configuration, which connects the main unit to the vehicle’s electrical system and the alarm horn. The horn has two wires: a black wire connects to vehicle ground (negative), and a red wire connects to the positive terminal of the alarm main unit. This clear wiring setup simplifies installation.

Power and Standby

The device runs at a working voltage of DC12V ± 3V, which matches the standard electrical system of most cars. Its quiescent current is 8mA, meaning it draws very little power when the alarm is armed but not triggered. The working current during an alarm is 7.5mA, and the speaker reaches 120dB for a loud alert.

Remote Control and Frequency

The remote control operates on the same 12V system and uses a 370MHz frequency, which can be customised to 315MHz or 433MHz as needed. Its transmission is effective over a distance of more than 80 metres.

Remote Specifications

The remote control has a working voltage of 6V, supplied by two CR2016 batteries. Its emission current is less than 4mA, and its quiescent current is 0mA, meaning it only uses power when transmitting. This helps the batteries last longer.

Learning Code System

The remote uses a learning code (EV1527 series) coding method. This allows you to pair the remote with the main unit easily without needing specialised tools. If the remote is lost, a new one can be programmed to work with the same receiver.

Benefits and Buying Value

This product offers straightforward vehicle security with key features that support convenience and reliability. Its low power consumption and long remote range add practical value.

Peace of Mind with a Loud Alarm

The 120dB speaker ensures the alarm is clearly audible from some distance, making it effective at deterring theft and notifying you or passers-by of a potential issue. The system triggers automatically when it detects an intrusion attempt.

Low Maintenance and Simple Use

With a low quiescent current draw from the vehicle battery and a remote that only uses power during operation, the system requires minimal attention once installed. The remote batteries are easily replaceable CR2016 cells, and the learning code process keeps programming simple.

Why Choose This Product

This anti-theft device combines a long-range remote, loud siren, and straightforward installation. It is compatible with standard 12V car electrical systems, and the 370MHz frequency can be customised to suit regional regulations. The use of a learning code system adds flexibility in managing multiple remotes.