Thatcham S5 Plus: GPS Tracker with Automatic Immobilisation The Thatcham S5 Plus takes our S5 tracker and adds one major security layer: automatic immobilisation. It's a TSC597-compliant, insurer-approved GPS tracker with built-in "No Tag, No Start" protection — the vehicle simply won't start unless an authorised driver tag is present. UK insurance-approved Thatcham S5 Plus vehicle tracker 4G-enabled real-time GPS tracking Automatic Driver Recognition (ADR) with immobilisation TOTP technology tags for secure driver identification "No Tag, No Start" immobilisation Advanced anti-theft alerts 24/7 monitored control room Free nationwide installation £9.99 monthly monitoring fee Suitable for all vehicle types Thatcham S5 Standard Compliance — TSC597 ☎️ Need assistance? Call 01924 976922 How the immobiliser works Each authorised driver carries a TOTP tag. Without that tag present, the vehicle's engine is electronically prevented from starting — so even if a thief gets inside, they can't drive off. It's this "no tag, no start" behaviour that separates the S5 Plus from a tracker that only monitors location. Real-time tracking and alerts Alongside immobilisation, the S5 Plus keeps the same 4G real-time GPS tracking as the standard S5: if the vehicle is moved without authorisation, you get an instant alert, and our monitoring centre is watching around the clock to help with recovery. Insurance and running costs Because it combines Thatcham-approved tracking with immobilisation, the S5 Plus typically qualifies for stronger insurance discounts than tracking-only devices — often enough to offset some or all of the £9.99 monthly fee. Installation and support Fitting is done by a qualified technician, free of charge, at a time that suits you. Our support team is available if you have questions about setup or day-to-day use afterwards. Who it suits The immobiliser makes the S5 Plus the stronger choice if you want to stop a theft in progress, not just track it after the fact — a good fit for higher-value vehicles or anyone who wants the extra layer beyond tracking alone.
