Alarm, Tracker & Immobiliser

Sentinel Ultimate

The Sentinel Ultimate is our most advanced motorhome security system. It combines a 110dB Vanguard alarm, Thatcham Category 1 accredited, with Thatcham S5 tracking, Automatic Driver Recognition and remote immobilisation. With “no tag, no start” protection, the vehicle won’t move without an authorised ADR tag, and can be safely disabled if it’s ever at risk. A Valet Mode allows the immobiliser to be bypassed remotely when needed. Ideal for high-value motorhomes and vehicles you can’t afford to lose.

Buy now

110dB Vanguard alarm

Thatcham Category 1 accredited, arm and disarm with an encrypted 4-button remote.
Full S5 protection

Automatic Driver Recognition, live tracking through the app/web portal and 24/7 UK monitoring as standard.
MiPhantom App/Portal

Our MiPhantom app and web portal provide you with easy access to important information and reports about your vehicle
Valet Mode

Remotely bypass the immobiliser when you need someone else to drive without a tag.
Remote immobilisation

Our control room can disable the vehicle in a theft; “no tag, no start” prevents it from moving in the first place.
Thatcham Certified

For proven protection that can lower insurance premiums, Thatcham use strict criteria and rigorous assessments to evaluate performance and service.

The key differences

What's the difference between the S5 and the S5 Ultimate?

The Sentinel S5 alerts our 24/7 UK control room the instant your motorhome moves without an authorised ADR tag present. The Sentinel Ultimate builds on this with vehicle immobilisation: its "no tag, no start" system stops a relayed or cloned key from driving the vehicle away, and if your motorhome is ever at risk, our control room can remotely immobilise it in real time.

Immobilisation isn't a requirement of the Thatcham S5 standard, so most insurers won't mandate it - but for high-value motorhomes, the Sentinel Ultimate offers the strongest level of theft protection we provide.