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Reduced price! BT Wireless Door Alarm & Internal Siren

BT Wireless Door Alarm & Internal Siren (battery powered).

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Very simple Wireless Door Alarm supplied with a Battery Powered Internal Siren & Remote Control, simple Alarm for use on many types of buildings including Sheds, Garages, Workshops, Boats, Caravans, Fuel Tanks etc.

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£ 35.99

(including 20% VAT)

£ 40.05

-£ 4.06

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Very simple Battery Powered Wireless Door Alarm, supplied with a Battery Powered Magnetic Contact (for fitting onto Doors, Windows & Hinged Lids) a Battery Powered Internal Wireless Siren (for fitting into an inaccessible location inside the building or into a nearby building) and a Remote Control which can operate the Alarm form up to 50 metres away.

This simple Door Alarm could be used in many different types of applications (with no chance of false alarms from small animals) including:

  • Sheds.
  • Garages.
  • Workshops.
  • Caravans & Park Homes.
  • Boats.
  • Fuel Tanks.

You can add additional Wireless accessories to this Alarm including:

  • Door Contacts.
  • Internal Sirens (inside any building up to 50 metres away).
  • External Solar Sirens (onto the Shed or nearby Building).
  • BT Wireless PIR's.
  • UltraPIR GSM PIR's (battery or power supply).
  • Remote Controls.
  • Ceiling PIR's.
The Battery powered Magnetic Contact would be fitted onto a Door or Window with the Magnet being fitted onto the adjacent frame, when the Door or Window is closed the both parts would need to be within 5 mm of each other (in some installations you would choose to reverse the two components making for a neater installation).
When the Door or Window is opened, the Contact will send a Wireless signal up to 50 metres away to all of the Sirens & PIR's operating within the same wireless network.

Need Advice on choosing the best System for your personal application or Help after you have Purchased one, then please contact

us by:

Telephone: We are still available in the old fashioned way, give us a call on 01604 589414 or 01604 758438 to talk to a real person, we are happy to give you Friendly, No Obligation advice (lines open 8am to 5.30pm Monday - Thursday, 8am to 5pm Friday).

Email: If you don't have time to call us, then send us an email to

Personal Visit: Some customers find it far easier to come and meet us for a Friendly, No Obligation Consultation (click here for full details).

  • 1 x Magnetic Contact, Magnet & Battery.
  • 1 x Wireless Internal Siren & Batteries.
  • 1 x Remote Control & Battery.

Siren Specification:

  • Built in Siren: Yes (130 Decibel).
  • Power Supply: 2 x AA Batteries (supplied).
  • Working Wireless Range: 50 metres (line of sight).
  • Size: 63 (W) x 85 (H) x 21 (D) mm.
  • Colour: Cream.
  • Siren Duration: 1 minute (but remains fully armed).

Magnetic Contact Specifications:

  • Power Supply: CR2 Lithium Battery (included).
  • Contact Size: 52 x 32 x 12 mm.
  • Magnet Size: 45 x 12 x 14 mm.
  • Wireless Operational Range: 50 metres (line of sight).
  • Installation Method: Double Sided Tape (supplied).

Remote Control Specification:

  • Power Supply: 1 x 3v Lithium Coin Battery.
  • Working Range: 50 metres (line of sight).
  • Operation Option: Arm or Disarm.
  • Size: 75 (H) x 45 (W) x 12 (D) mm.
  • Battery Life: 1- 2 Years (normal use).