THIEFSTOP 120dB MOTION ALARM

Designed in the UK for trades • Free UK delivery • 30-day returns

HeatLab

Protect my tools — £33.99

ThiefStop — 120 dB Alarm with Remote Fob & Install Pack

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39-second real on-site demonstration

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THIEFSTOP 120dB MOTION ALARM

4.7/5

230 Amazon ratings

A flexible 2L radiator draining tub that clips around pipes.

See the RadKey up close

Tap an image

See it in action

Watch the 40-second demonstration

4.5/5 230 Amazon ratings

100+ bought last month

Mount it inside your van, arm it from outside with the remote, and get an immediate warning if the PIR sensor detects movement—no wiring, Wi-Fi, app or subscription.

Up to 6 months 4 AAA batteries included

Robust remote fob Control it from outside

Patented bracket Allen-key secured

COMPLETE INSTALL PACK

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£37.99 £31.99

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Protect my tools — £31.99

Free UK delivery · 30-day money-back guarantee · Secure checkout

1

Mount Fit the secure bracket

2

Arm Press the remote fob

3

Deter 120dB sounds on motion

Every 55 minutes

A van was stolen in the UK during 2025.

£420 a day

Average lost business estimated by affected tradespeople without access to their van.

Source: Direct Line business insurance research, February 2026

DESIGNED IN THE UK FROM REAL EXPERIENCE

Built after a van break-in—not as another generic knock-off alarm.

ThiefStop was created after its designer had his own van broken into. The result is a straightforward alarm made around the realities of trade life: a piercing 120dB siren, a patent-protected secure bracket, a robust remote fob and long-lasting battery power.

Protect your tools. Protect your livelihood.

BUILT FOR REAL-WORLD TRADE SECURITY

A unique alarm designed to stay put.

ThiefStop is not simply another loose marketplace alarm. Its UK-designed, patent-protected mounting system and complete install pack are built for dependable everyday trade use.

120dB

Immediate deterrent

The 6–8m PIR sensor triggers a piercing siren when it detects movement

120dB

Immediate deterrent

The 6–8m PIR sensor triggers a piercing siren when it detects movement

Patented

Immediate deterrent

The 6–8m PIR sensor triggers a piercing siren when it detects movement

Patented

Secure mounting

The UK-designed bracket is Allen-key secured—not simply left loose on a shelf.

Up to 6 months

Long battery life

Four AAA batteries are included, so it is ready to fit from the box.

Up to 6 months

Long battery life

Four AAA batteries are included, so it is ready to fit from the box.

Robust fob

Control it from outside

Arm and disarm it before you open the van—without Wi-Fi, an app or a subscription.

Robust fob

Control it from outside

Arm and disarm it before you open the van—without Wi-Fi, an app or a subscription.

FIT IT. ARM IT. GET ON WITH THE JOB.

Security that
doesn’t need
another app.

Security that doesn’t need another app.

Fix the adjustable bracket to wood, metal or plastic, add the included batteries and control it from outside with the remote.

Van

Garage

Workshop

Shed

Installs in minutes

CE and UKCA compliant

No subscription cost

CHOOSE THE ALARM MADE TO STAY PUT

ThiefStop vs a typical basic PIR alarm.

Basic alarms vary. ThiefStop is built as a complete, straightforward install pack for trades.

WHAT MATTERS

THIEFSTOP Made for trade kit

TYPICAL BASIC ALARM Marketplace alternative

Mounting

Patent-protected, Allen-key-secured bracket

Often loose or fixed with a basic mount

Siren

120dB immediate alarm

Output and response vary

Control

Robust remote fob included

Basic remote may be supplied

Power

4 AAA batteries included · up to 6 months

Batteries and life vary

Support

HeatLab UK customer support

Often a marketplace seller

Buy the alarm designed to stay mounted. One complete pack, ready to fit.

Get ThiefStop — £33.99

CUSTOMER REVIEWS

Customers say it’s simple, solid and loud.

4.7

★★★★★

Based on 11 customer reviews

★★★★★

Customer review

“A very smart bit of kit”

“When activated the alarm is very loud and in confined spaces it’s effective. For the price, this is a very smart bit of kit and is well worth it.”

Kyle

★★★★★

Customer review

“Works as advertised”

“Very loud alarm and with a perfectly audible beep to let you know you’ve locked and unlocked it. Very happy with this product.”

Craig Procter

★★★★★

Customer review

“Super simple to set up”

“Super simple to set up and use. Very loud, picks up motion very quickly. Also well built, comes with batteries so you literally ready to go.”

Lyndon Morgan

READY TO FIT FROM THE BOX

Everything you need to protect the space around your kit.

ThiefStop 120dB alarm unit

Secure adjustable mounting bracket

Wall plugs, screws and Allen key

Wireless remote fob

4 AAA batteries

Quick-start instructions

Fit and forget: up to 6 months of battery life, depending on use.

STRAIGHT ANSWERS

Before you fit ThiefStop.

How does ThiefStop work?

Arm it with the remote fob. If the PIR sensor detects movement within its coverage area, the 120dB siren sounds as an immediate deterrent.

Where can I use it?

It is suited to enclosed spaces such as vans, sheds, garages and workshops. Position it where the sensor has a clear view of the area you want to cover.

Does it need Wi-Fi, wiring or a subscription?

No. It runs from four AAA batteries and is controlled by the supplied remote fob. There is no app or monthly fee.

How far does the motion sensor reach?

The PIR sensor has a quoted detection range of approximately 6–8 metres. Layout, temperature and positioning can affect real-world coverage.

Is an alarm enough on its own?

ThiefStop is an additional deterrent. Keep using good locks, secure storage, insurance and any tracking devices appropriate for your tools.

What if it isn’t right for me?

HeatLab offers a 30-day money-back guarantee. Return it in line with the returns policy for a refund.

ONE SMALL ALARM. ONE VERY LOUD WARNING.

Add an immediate 120dB deterrent around your tools.

Free UK delivery. Complete install pack. 30-day money-back guarantee.

Protect my tools — £33.99

★ ★ ★ ★ ★

£36.99 £33.99

Protect my tools

A flexible 2L radiator draining tub that clips around pipes.

Built after a van break-in—not as another generic knock-off alarm.

A unique alarm designed to stay put.

Security thatdoesn’t needanother app.

Security that doesn’t need another app.

ThiefStop vs a typical basic PIR alarm.

Customers say it’s simple, solid and loud.

Everything you need to protect the space around your kit.

Before you fit ThiefStop.

Add an immediate 120dB deterrent around your tools.

Security that
doesn’t need
another app.