The warner emits a humming / buzzing sound if the light is still switched on after you have removed your car key. A visual light signal cannot be seen. You can attach the Warner with screws or it with tape.
eBay
Car Remote Central Door Lock Keyless Control Kit Alarm System Remote Control
Aliexpress UK
Comprehensive Protection: The car auto burglar alarm protection system provides multi-layer security with easy-to-use buttons: Arm (Button 1), Disarm (Button 2), Anti-Hijack (Button 3, programmable), and Trunk Release (Button 4), along with other programmable silent arm/disarm options, ensuring your vehicle is safeguarded against unauthorized access.
eBay
JMCQ USB Android TPMS Tire Pressure Monitoring System Display Alarm System Internal External 5 Sensors For Car Navigation Radio
Aliexpress UK
Car Back-up Alarm 12V/24V 105dB Car Reverse Alarm Buzzer Siren with Light. Protect Function: The car reversing horn is with automatic protection function, can play a protective role when the wires are reversed or connected incorrectly.
eBay
Universal Car Vehicle Security System Burglar Alarm Protection Anti-theft System 2 Remote with Siren Wiring Harness Programmable
Aliexpress UK
Protection function: the car reversing horn has an automatic protection function, which can play a protective role when the wires are reversed or incorrectly connected. Sound Level: 105 dB. High quality material: made of ABS material, which is wear-resistant, non-deformable, light weight, sturdy and durable, and has a long service life.
eBay
Smart TPMS Car Tire Pressure Alarm Monitor System 4 Sensors Display Solar Intelligent Tyre Pressure Temperature Warning
Aliexpress UK
Wireless Burglar Vibration Waterproof Alarm This is a multi-purpose vibration alarm. The alarm will sound when it is triggered by vibration. When the alarm is in arming mode, the alarm will sound once when it is triggered for the first time; if it is triggered again within 2-12s, the alarm will sound for 30s and then stop, and then re-enter arming mode. The unlock button of the remote control can make the alarm stop. 3 levels of volume and 7 levels of sensitivity can be adjusted. 113dB super loud volume deters theft. Easy to set whether the alarm is triggered by a light touch or a hard shake. IP65 waterproof, no fear of rain or snow. The lightning button on the remote control can be used as a proximity finding bell or warning bell. Ideal for car，bicycle, scooter, motorcycle anti-theft.
eBay
Smart Solar Power TPMS Car Tire Pressure Monitoring System Alarm Tyre Air Pressure meter Gauge Temperature Warning 4 Sensors
Aliexpress UK
Remote trunk release. Remote lock and unlock your vehicle. Automatic central lock output optional. It's just take you 1 minute. Power window output optional. We'd like to settle any problem in a friendly manner.
eBay
89341-64010 New Car Radar Detector Parking Asistance Sensor Rear Bumper Object PDC Alarm Sensors 8934164010
Aliexpress UK
Item Type: Reversing. 1 x Car Reversing. Special Functions: Waterproof. Waterproof Rate: IP67. - The voice is loud and clear, fir for different cars. Output Power: 15W. Speciality: With single sound and light.
eBay
Universal TPMS Car Tire Pressure Alarm Monitor System 4 Sensors Display Solar Intelligent Tyre Pressure Temperature Warning
Aliexpress UK
Item Type: Reversing. 1 x Car Reversing. Special Functions: Waterproof. Waterproof Rate: IP67. - Sturdy and. Output Power: 15W. Place of Application : Motorcycle Car Vehicle. Speciality: With single sound and light.
eBay
JMCQ USB Android TPMS Tire Pressure Monitoring System Display Alarm System Internal External 5 Sensors For Car Navigation Radio
Aliexpress UK