Swann 351-MDA Door & Window Intruder Alarm

Code: N06JX

  • Easy setup battery operated – no wiring
  • Single magnetic break contact alarm
  • Loud 110+ dB siren built in
  • Alarm activate immediately on the door or window opening
  • Limited stock may be available in some stores. Call us on 0844 557 6000 to check

Product details

Swann 351-MDA Door & Window Intruder Alarm

• Easy setup battery operated – no wiring
• Single magnetic break contact alarm
• Loud 110+ dB siren built in
• Alarm activate immediately on the door or window opening

Easy to Setup and Ready to Go
The Swann 351-MDA Door & Window Intruder Alarm is a standalone magnetic break contact alarm with built in siren and comes with all the fixings needed. No wiring needed the Swann 351-MDA Door & Window Intruder Alarm is battery operated (batteries not included Order Code FM28) and features a low battery indicator tester to check the status of the batteries.

How do I the most out of my door & window contact alarm?
The Swann 351-MDA Door & Window Intruder Alarm should be place on any main points of access in and around the home for example front and back doors, ground floor windows and accessible window or external door. The siren goes off as soon as the window or door is opened once it is on. The door & window alarm can be placed on almost any door or window as long as the frame is with 26mm giving you the freedom to protect the areas you want.

Power Source
Mains No
Battery Yes
Mains and battery backup No
Low battery indicator Yes / Battery Test Button
Wireless No
Frequency N/A
Wired No
Cable length N/A
Phone landline No
Smartphone enabled No
GSM enabled No
RFID tags No
PIR movement No
Door / Window Yes
Panic button No
Key fob remote No
Remote Control No
Fire detector No
Gas detector No
Monitoring and alerts
Remote Controlled via smartphone app No
Manually controlled via control box in the home No
Remote controlled via key fob remote No
Push notification alert No
Siren Yes
Siren alert 110+ dB
Siren duration 60 s
Operating range
Maximum operating range N/A
Transmission frequency N/A
Operating systems and protocols
Android N/A
Expandable N/A
Operating power DC 1.5 LR44 Battery x 4
Dimensions 60 mm x 42 mm x 13 mm
Weight 38 g
Outdoor Rated No
Battery type(s):
for control unit 4 x LR44 battery per unit
for sensors and accessories N/A
Test mode button No
Package Contents
1 x Magnetic Window Alarms
4 x LR44 Batteries
Double-sided Mounting Tape
Operating Instructions

What is the width of the magnet as my window frame is only 1cm wide where it contacts with the window.

Asked by: annie
Unfortunately we no longer stock this item as it has been discontinued from our range.
Answered by: Dominic
Date published: 2016-07-07

does this have a chime mode for visitors, like the swann 351-kcg

Asked by: jon_
The manual has no information about chime mode so I would say the item has no support for this.
Answered by: Dominic
Date published: 2016-06-16

Can you please tell me;  if it turns off if the window is closed again? How long does the alarm sound for? How is it turned off?

Asked by: Maryanne
If the window is closed and the contacts are aligned the alarm will turn off , the alarm will sound while the contact is broken.
Answered by: Darren
Date published: 2016-12-24

have you any other colours as we have an oak coloured door with chrome hinges so looking for the colour a chrome/silver colour or an oak colour if possible thank you Russell Dunn

Asked by: joiner
On this occasion Maplin do not stock a product that exactly meets your requirements, or indeed anything close enough to offer you as an alternative.
Answered by: Les
Date published: 2016-01-04


Asked by: JUDITH
This will only protect the door it is installed on.
Answered by: Billy
Date published: 2017-08-27

Can it be used outside on a gate .

Asked by: Jackie
Thanks for your answer. Skateboadrs and air boards cant be used on roads and pavements. That is very clear. Can I use Airwheel or electric unicycle on a pavement
Answered by: Binesh
Date published: 2017-08-27

The most obvious question is, does it have an on off switch? Your instructions do not state this.  If a door is being used fairly often you would not want the alarm going off every time you go in and out. 

Asked by: Alin
This item does have an on and off switch.
Answered by: Darren
Date published: 2016-12-24

How do the component parts attach to the door/window?

Asked by: Grant
This uses double sided tape to attach. The full mounting instructions can be found in the downloadable user manual under the downloads tab for anymore information.
Answered by: Brad
Date published: 2016-01-27
  • y_2017, m_9, d_20, h_23CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_12
  • loc_en_GB, sid_N06JX, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_maplin-en_gb

Bulk Prices

Item code Item name Quantity Price
N06JX Swann 351-MDA Door & Window Intruder Alarm (1+) £2.49

Why not tell us and our B2B sales team about your specific business needs and expectations?

At Maplin, we’re always looking for innovations and technology that can help your business work more efficiently.

With a dedicated business team and special services available only to business customers, you can access our electronics and technology solutions through our wide network of over 200 stores, our website with more than 20,000 products or though your personal account manager over the phone.

Working with organisations for nearly 30 years, Maplin offers a nationwide range of benefits to our business users:

  • 30 day EOM credit account
  • volume discount pricing
  • online and in-store use of account
  • one-to-one account management
  • bespoke product sourcing and branding
  • free delivery on orders over £10
  • scheduled and forward ordering service

Contact our business team on 

0333 400 9740 to open an account or discuss your business needs.

To receive your free copy of the Maplin Catalogue just call 0333 400 9740.

Save: £2.50



  • Home Delivery
  • Click & Collect