YOUR CAR
CAN BE STOLEN
in under 60 seconds with no alarm triggered
Car Anti Theft Systems — UK
Car anti theft system UK — physical protection
Relay attacks. CAN injection. OBD key cloning. Three methods, one answer: a physical relay that interrupts the engine circuit regardless of what signal is presented.
The most effective car anti theft system in 2026 is not the most expensive one — it’s the one with the right architecture. Physical relay interruption stops modern attacks that CAN bus systems, factory immobilisers, and tracking-only solutions cannot prevent.
20Arelay rating — interrupts fuel pump circuit completely
Zeroelectronic bypass possible — relay is a mechanical switch
Allvehicles — cars, vans, EVs, HGVs, motorhomes, 12/24V
Anti theft layers — what each product adds
| Layer | What it does | LockCar product |
|---|---|---|
| Relay immobiliser | Physically prevents engine start — stops relay attacks and CAN injection | IC3ST, IS357, IS326 |
| GPS tracking | Real-time location — enables recovery if vehicle moves | ONE Plus |
| 4G live camera | Visual evidence and live view — confirm theft in progress remotely | ONE, ONE Plus, DUO |
| Remote immobilisation | Stop the engine from your phone if the vehicle is moved | ONE Plus |
| Auto night arming | Immobilised automatically every evening — no user action required | ONE Plus |
| Motion alerts | Notified immediately if the vehicle is disturbed | IC3ST, IS357, ONE Plus |
Car anti theft systems — UK made, UK installed
LockCar anti theft systems from £139
Physical relay. GPS. 4G camera. Remote control. All available as standalone products or combined in the ONE Plus.
See all products → Free recommendationFrom £139product only