Make it yours

Choose your options once. Your vehicle and fitting details stay with this item through checkout.

Fitters near you

Fitting across England, Scotland, Wales and Northern Ireland.

Enter your fitting postcode

We’ll confirm your fitting date after booking.

Optional extras

Add a tracker (optional)

A Thatcham tracker needs its own monitoring plan. Its cost is included in the total below.

All fields are required unless marked optional.

1Your vehicle

Vehicle registration Vehicle make and model Year of manufacture Keyless start?

Please enter the details for one vehicle. Add another configured item for each additional vehicle.

2Your installation

Three preferred dates

First choice Second choice Third choice

Choose three different weekdays, at least five days from today. These are preferences, not confirmed appointments. We’ll contact you to agree an engineer’s date and time.

Where should we fit it?

Billing addressUse the address entered at checkoutAnother addressHome, work or another location

Notes for our team (optional)

Your device£399.00

First month of monitoring

Extra products / fobs

Total due today£399.00

12-month device warranty from installation

Included: Immobiliser, professional installation and selected extras.

Next steps: We confirm your vehicle details and fitting appointment, then install and test the system.

Secure checkout

Available payment options are shown at checkout.

Secure Shopify checkout · One vehicle per configured item

Casper: PIN-operated protection for your Mercedes

On a compatible vehicle, a personal PIN entered using supported existing buttons adds an authorisation step before starting. Professional fitting is included.

What this product does

A standalone immobiliser adds start protection. It is not a GPS tracker and does not replace an S5 or S7 tracker required by your policy. Casper is a separate product from Autowatch Ghost; “Ghost-like” describes its discreet style of protection.

What is included in the price

The Casper immobiliser and professional installation. Give us the exact make, model, year, powertrain and existing security details so compatibility and fitting arrangements can be confirmed.

Monitoring and ongoing costs

This standalone immobiliser does not include monitored GPS tracking. If you also select a tracker, its device price and monitoring charges are separate. Our Thatcham tracker monitoring is £10.99/month.

Who should choose a different product?

Choose Casper Pro if you prefer carrying an authorisation tag instead of entering a PIN. Compatibility must be checked for your exact vehicle, including EVs and hybrids.

What happens after checkout

We confirm the vehicle and fitting details and agree an appointment. Your installer fits and tests the system, demonstrates its operation and explains the support procedures.

Read how trackers and immobilisers work together or ask us to check compatibility.

£399.00Configure your vehicle

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Read our customer reviews

See customer experiences of GPSBob trackers supplied by Thatcham Trackers and our sister brand GPSBob. Original review sources are linked on our reviews page.

Read customer reviews