Anti-Jamming Car Security Alarm Detector

Anti-Jamming Car Security Alarm Detector – Protect Your Vehicle Against Signal Blocking

Keep your car safe with this Anti-Jamming Car Security Alarm Detector, designed to alert you when criminals attempt to use signal jammers to block your remote or immobiliser. Vehicle jamming is a growing problem in South Africa, where thieves use radio frequency (RF) devices to prevent your car from locking. This simple but powerful anti-jamming detector gives you instant warning if someone is trying to block your signal, so you never leave your car vulnerable.

Key Features:

• Reliable Jamming Detection – Detects common vehicle jamming frequencies (315MHz, 433MHz, 868MHz, 2.4GHz).

• DIY Installation – Easy to fit in most vehicles without professional wiring.

• Instant Alert – Triggers a buzzer or alarm when a jamming attempt is detected.

• Compact Design – Discreet unit that won’t clutter your car’s dashboard.

• Peace of Mind – Alerts you immediately if a jamming attempt threatens to keep your car locks or alarm from working, so you can act before it's too late.

Why You Need a Anti-Jamming Car Security Alarm Detector

Criminals often wait in parking lots, shopping centres, and fuel stations with jammers that block your remote signal. You think your vehicle is locked, but it remains open and vulnerable. With this car signal jammer detector, you’ll be alerted immediately if jamming is happening, giving you the chance to lock your car manually and prevent theft.

Perfect For:

• Everyday drivers who park in public places

• Fleet owners looking to protect company vehicles

• High-risk areas where car jamming is common

✅ Protect your car, protect your valuables, and have peace of mind.

Order your Car Anti-Jamming Alarm Detector today and take the first step against car jamming theft in South Africa.

N.B - We are not responsible for any loss or damage caused from using or attaching this device to your own vehicle. By purchasing this product you automatically agree to this and will not hold Buysave PTY Ltd liable. The device has been tested to work on garage or gate remotes with RF frequency. It is an entry level device and not a complete security system. To test it works, install and press your gate remote and hold it down, the alarm on the siren will go off.

Product Details

Weight: 0.22 kg

APPLICATION

Alert user of potential jamming of car alarm and central locking.

SPECIFICATION

• 12v DC operation

• 433Mhz frequency detection

• Built in receiver and 110db siren

• Will sound siren if continuous signal is received for more than 3 seconds

• 3 second delay before jamming triggers the siren

• Automatic reset if jamming stops

• Will only operate once vehicle is turned off

• Physical size: 100mm x 50mm.

WIRING DIAGRAM

Connects directly to vehicle battery

INSTALLATION

• Connect red(+) and black (-) wires to vehicle battery, make sure you know what you doing or do not attempt this. Any DIY person or electrician can help. 
• Cable tie unit to battery harness
• Press and hold any remote on 433mhz, unit goes into alarm if jamming continues.
• Automatically turns off when the vehicle is running and on for 5 minutes once the ignition is turned off.This prevents nuisance triggers during the night as jamming can occur while you are leaving your vehicle after parking