Alarm Sensors Made Simple: Your Guide to Connect-FLX Sensors
Your Connect-FLX panel is the brain of your alarm. Sensors are its eyes and ears. This guide explains what each one does, in plain English, so you can choose the right ones for your home or business.
No wires: every sensor is wireless.
Fitted in minutes: most stick on with the tape supplied.
Years of battery life: no mains power needed.
Alerts on your phone: wherever you are.
How sensors work
Something happens. A door opens, someone walks past, a pipe leaks or smoke appears.
The sensor notices. It instantly sends a secure wireless signal to your Connect-FLX panel.
You find out. Your phone gets an alert, and if the alarm is set, the siren sounds.
Which sensor do I need?
Start with what you're worried about:
Someone opening a door or window → Door & window sensor
Someone walking around inside → Pet-friendly motion detector
A window being smashed → Glass-break sensor
The garage door being forced up → Garage door tilt sensor
A shed or gate being opened → Outdoor gate & shed sensor
A burst pipe or frozen pipes → Leak & freeze sensor
A fire while nobody's home → Smoke & heat alarm
Carbon monoxide from a boiler → Carbon monoxide alarm
Needing help in an emergency → Panic button
Scaring intruders off → Outdoor siren
Keep intruders out
Door & window sensor
Tells you the moment a door or window opens.
Best for: front and back doors, ground-floor windows
Battery: lasts 10 to 15 years
Price: £29.72 inc VAT
Mini door sensor (NanoMax)
Our smallest door sensor. Almost invisible once fitted.
Best for: narrow frames, patio doors, cupboards
Battery: lasts around 6 years
Price: £24.77 inc VAT
Long-life door sensor
Fit it and forget it. A slim door sensor built to run for a decade.
Best for: holiday lets and rentals
Battery: lasts around 10 years
Price: £31.37 inc VAT
Pet-friendly motion detector
Spots a person moving around a room, but ignores pets up to 38 kg.
Best for: hallways, living rooms, landings
Battery: lasts up to 5 years
Price: £41.28 inc VAT
Glass-break sensor
Listens for the sound of breaking glass, so you know before anyone climbs in.
Best for: rooms with big windows or glass doors
Covers: up to 6 metres away
Price: £64.39 inc VAT
Garage door tilt sensor
Alerts you when an up-and-over or roller door starts to lift.
Best for: garages, workshops, roller shutters
Battery: lasts 10 to 15 years
Price: £32.86 inc VAT
Outdoor gate & shed sensor
A waterproof door sensor that works outside, even on doors that don't close perfectly.
Best for: sheds, gates, barns, outbuildings
Weather: fully waterproof
Price: £80.90 inc VAT
Protect from accidents
An alarm isn't just for burglars. These sensors warn you about the things that cause the most damage when nobody's home.
Leak & freeze sensor
Warns your phone the moment it touches water, or if a room gets cold enough to freeze pipes.
Best for: under sinks, by boilers and washing machines
Battery: lasts around 10 years
Price: £47.88 inc VAT
Smoke & heat alarm
Sounds loudly and alerts your phone if it detects smoke or a sudden rise in heat.
Best for: hallways, landings, empty properties
Why it helps: you know even when nobody's home
Price: £80.90 inc VAT
Carbon monoxide alarm
Carbon monoxide has no smell or colour. This alarm detects it and warns you straight away.
Best for: rooms with a boiler, fire or log burner
Bonus: tells you when it needs replacing
Price: £97.42 inc VAT
Safety and everyday control
Panic button
One big button that calls for help. Wear it on your wrist, round your neck, or fix it to a wall.
Best for: shop counters, lone workers, older relatives
Battery: lasts 4 to 6 years
Price: £80.90 inc VAT
Key fob remote
Set and unset the alarm from your keyring as you come and go.
Best for: every member of the household
Battery: lasts around 5 years
Price: £23.11 inc VAT
PIN pad
A small keypad by the door. Type your code to switch the alarm off.
Best for: back doors, staff entrances, guests
Battery: lasts around 5 years
Price: £31.37 inc VAT
Outdoor siren
A loud, bright blue box on your wall that tells everyone your property is protected.
Best for: the front of any property
Loudness: 100 decibels
Price: £181.46 inc VAT
What does a typical home need?
Here's a sensible starting point for a three-bedroom house:
Connect-FLX panel with 7″ touchscreen: £321.98
2 door & window sensors (front and back): £59.44
2 pet-friendly motion detectors (hall and lounge): £82.56
1 leak & freeze sensor (under the sink): £47.88
1 outdoor siren: £181.46
2 key fobs: £46.22
Total: £739.54 inc VAT. You can add more sensors any time; the panel takes up to 96.
Our top tips
Doors first. Put a sensor on every outside door. That's where most break-ins start.
Motion as backup. One motion detector in the hall catches anyone who gets past a door or window.
Think beyond burglars. A leak sensor under the sink can save thousands in water damage, especially in a holiday let.
One fob each. Fobs make the alarm easy for everyone, so it actually gets used.
Common questions
Do I need an electrician to fit sensors?
No. The sensors are wireless and battery powered. Most stick on with the tape supplied, and each one comes with a simple guide.
Will my dog or cat set the alarm off?
Choose the pet-friendly motion detector. It's designed to ignore pets up to 38 kg while still spotting a person.
How will I know when a battery needs changing?
Batteries last years, and the system warns you when one is running low.
Can I add more sensors later?
Yes. Start small and add sensors whenever you like. Your panel can take up to 96.
Do the sensors work if the internet goes down?
Yes. Sensors talk directly to your Connect-FLX panel, which has its own 4G connection built in, so alerts still reach your phone.
Not sure what you need?
Tell us about your property and we'll suggest the right sensors. No jargon, no pressure. Call 07966 475496 or email contact@sold-simply.co.uk, or browse the full Connect-FLX range →
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