Easy to install, just simply connect it to the cables of the reversing light. 1 x Back Up Alarm Horn. Output: 110DB. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.
eBay
Aqara Water Leakage Sensor Water Leak Detector Sensor IP67 For Home Remote Alarm Security Sensor for Mi Home Homekit app
Aliexpress UK
4 X Sensors. Sensor Range 1-2.5m. 1 X LED Display. Color：Black.
eBay
Scare off would-be intruders and alert the neighborhood with this wireless 105 dB indoor/outdoor siren. Loud 105 dB siren makes sure the alarm is heard when a security risk is detected. IP65 weather-resistant design, so the siren can be used indoors...
eufy UK
Upgrade your commercial vehicle's safety features with the Motormax Heavy Duty Motor Reversing Alarm. Designed for robust use, this alarm operates efficiently within a 12-24V system, ensuring your trailer or motorhome stays secure during transit. The added night silent facility enables the alarm to remain unobtrusive when parked, preventing unnecessary disturbances at night. Whether you're managing a fleet or operating a single vehicle, the versatility of this alarm system is tailored to meet the needs of the modern commercial driver. It's a practical solution for enhancing the security of your valuable equipment and personnel, providing peace of mind with every journey.
eBay
Ewelink Zigbee Door Sensor Wireless Magnetic Window Open Closed Alarm Detector Works With Zigbee2MQTT Alexa Google Need Gateway
Aliexpress UK
Front Rear 8 Sensors Car Parking Sensor Reverse Parking Kit. FRONT & REAR PDC PARKING 3 pin SENSOR FOR BMW 5/6/7 Series 66202180495. Sound Type: BiBiBi.Buzzer. Tailgate Boot Lock. Tactical LED Flashlight.
eBay
EWelink ZigBee Door Window Sensor Smart Home Wireless Door Open Close Detector APP Remote Alarm Works with Alexa Google Home Z2M
Aliexpress UK
As the picture light reason, the photos color will be a little different as the real one.
eBay
Ewelink Zigbee Door Sensor Wireless Magnetic Window Open Closed Alarm Detector Works With Zigbee2MQTT Alexa Google Need Gateway
Aliexpress UK
8E0919279 Reversing Parking Warning Buzzer Alarm. 1x 8E0919279 Reversing Parking Warning Buzzer. FOR Skoda FABIA 2007-2015. FOR Skoda OCTAVIA 2004-2013. FOR Skoda ROOMSTER 2006-2015. FOR Skoda SUPERB 2002-2013.
eBay
Aqara Water Leakage Sensor Water Leak Detector Sensor IP67 Smart Home Remote Alarm Security Soaking Sensor For Xiaomi mijia App
Aliexpress UK
107dB, 12-38V, Beeping or White Noise, 4 Wires.
eBay
Wireless Door And Window Vibration Sensor Alarm 125dB Glass Breakage Anti-theft Sensor, Easy Install For Home Safety Protection
Aliexpress UK
Beepingalarm prompt step by step, closer the obstacle, more rapid the alarm sound. Threecolor, green, yellow, red LED lights indicates obstacledistance. Obstaclespecific position shows on the LED screen.
eBay
Y51A for Touch Door Knob Entry Alarm Alert Security Anti Theft
Aliexpress UK