Cheap dummy OBD ports are fine but when you want to diagnose any problems with the vehicle's systems you have to remove the dummy port to plug a diagnostic scanner in. The dummy OBD port is live but any thief will not be able to read any data.
eBay
Sensor 5W Waterproof Wall Lamps IP65 Stairs Light Operated For Room Hallway Pathway Toilet Night Security AC110V 220V
Aliexpress UK
Peace of Mind: With this steering wheel lock in place, you can have peace of mind knowing that your vehicle is secure and protected against theft and unauthorized use. Item Type: Car Steering Wheel Lock.
eBay
LED Solar Security Lights Motion Sensor Outdoor 234/280/226LED Flood Light IP65 Waterproof Split Wall Lamp Solar Powered 3 Mode
Aliexpress UK
This Steering Wheel Lock is 62cm long. 1 x Steering Wheel Lock. We are confident this is the strongest and most secure steering lock ever made. It is a highly visible and powerful theft deterrent.
eBay
Aqara Water Leak Sensor ZigBee Water Immersing Detector Alarm Security Soaking Sensor Smart Home For Xiaomi Mi Home Homekit APP
Aliexpress UK
Box opened all new
eBay
Zigbee Door Window Sensor Open Closed Detector Security Wireless Burglar Alarm Door Sensors Support Alexa Home Assistant Z2M
Aliexpress UK
Its heavy-duty construction and compatibility with various vehicles make it the ideal choice for anyone looking to enhance their vehicle's security. With two sets of keys provided, you'll always have a spare, ensuring that you're never left stranded.
eBay
Security Led Light Bulb with Motion Sensor E27 E26 B22 12W 85-265V Movement Activated Dusk to Dawn Lamp for Porch Garage Hallway
Aliexpress UK
Ideal for parking in high-risk areas, outdoor storage, and travel security. Suitable for all ages and vehicle types; adjustable length ensures compatibility. If the lock length is insufficient, simply adjust the seat position for a perfect fit.
eBay
ZigBee Door And Window Sensor Home Security Wireless Burglar Alarm Door Sensor Detector Works With Ewelink App Alexa Zigbee2mqtt
Aliexpress UK
A heavy duty pedal to steering wheel lock that assists with protecting your vehicle against theft while acting as an effective visual theft deterrent. This lock extends up to 80cm so that it can be fitted around your vehicle’s steering wheel and either your vehicle’s clutch, brake or accelerator pedal.
eBay
EWelink ZigBee Door And Window Magnetic Sensor Wireless Door Alarm Detector Smart Home Security Works With Zigbee2MQTT Alexa ZHA
Aliexpress UK
Its simplicity and efficiency in locking, in just a few seconds, the user can securely lock the steering wheel and seat belt with minimal effort. This car anti-theft device features dual-locking functionality to protect both the steering wheel and the seat belt.
eBay
Bluetooth Fingerprint Door Lock TTLock App Code Card Key Touch Screen Smart Door Lock Security Digital Electronic Lock For Home
Aliexpress UK