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Garage/Shed Alarm

Code: QS39N

4.7  out of 5 based on 15 reviews
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  • Low cost, easy-to-install security suitable for sheds, garages, conservatories, tack rooms, caravans, boats etc.
  • Operated by 3 x AAA batteries (not supplied - Order Code: L42AL) making it a very versatile and compact alarm
  • Powerful 120dB siren

Product details

Garage/Shed Alarm

• Low cost, easy-to-install security suitable for sheds, garages, conservatories, tack rooms, caravans, boats etc.• Operated by 3 x AAA batteries (not supplied - Order Code: L42AL) making it a very versatile and compact alarm• Powerful 120dB siren• Digital control panel • Three digit code operation• 3, 15 or 30 second entry delay
• 10, 20 or 30 second exit delay
• Over-ride function for days when you need to work from the shed with the door left open• 10cm pre-wired door contact• Visitor chime function• Panic alarm
• Main units measures approximately 60 x 30 x 100mm (W x D x H)


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10 of 15 Reviews

  • Just the job for my shed

    The alarm surprisingly loud for a battery operated unit.

    Dead easy to fit although as others have said, the wire to the sensors really could do with being longer.

    Keeps the Mrs out of my shed so I can hide away my new power tools form her :-)

    Was this review useful?  Yes No  4 0

  • Great alarm ! Saved me from an empty shed !

    I bought this alarm about 4 month ago, I've always used it for my shed door.
    A few nights ago my shed was attempted burgled, the burgler managed to "jammy" open the door enough for the magnetic connectors to break put not enough to fully open door, I was awoken to the shed alarm noticed the door was damaged and then saw a white Van drive away quickly.
    This alarm had stopped the burgler in his tracks.
    Defiantly worth it. !

    Was this review useful?  Yes No  10 0

  • I bought this alarm a few years ago and it was easy to install and easy to use. I do still occasionally forget about it when I go into the shed but the ear splitting screech soon reminds me it is there! At 2.00 this morning thieves tried to break into my shed. Thanks to careful placement of the magnetic switches the alarm went off when they pulled at the top of the shed door. They hadnÔÇÖt even got round to trying to lever the door open (I have bolted hasps and chunky padlock fitted) and the loud alarm scared them off with no damage and nothing taken. Because the alarm went off and woke me up (even through double glazed windows) I managed to call the police very quickly and they were on the scene in 20 minutes with a tracker dog. The dog picked up a scent and took the police to a taxi that had been broken into. I do not know if they caught anyone though. I am about to build another shed for our bikes and will definitely be fitting another of these alarms.

    Was this review useful?  Yes No  58 5

  • Overall very happy, but the lead is too short, however I unsoldered it and fitted a longer lead so I could position it in a convenient location on the wall. Another possibility is to simply cut the wire and join it, either way it works OK If you've had a alarm fitted before, it is possible to use the original magnet on the door, as all it does is actuate the read switch to the alarm.

    Was this review useful?  Yes No  12 0

  • This alarm is so simple to set up, I cut the wire and rewired it to the shed door contact that was already in place wired from the garage, when the alarm system that I had gave up, so that the control is in the garage, two feet away, no problems.

    Was this review useful?  Yes No  15 9

  • I have one of these installed in my flat by the front door. I have made some modifications: fitted rechargeable batteries and a plug in power supply so I can just leave it without worrying about it. The Door contact CAN be extended if you know what you are doing. It is very loud and easily programmble to suit your needs. Only down side is that once the alram is triggered and you forget to close the door the uuit will sound continuously unless you close the door or deactivate the alarm with your chosen 3-digit code.

    Was this review useful?  Yes No  30 3

  • This is the second such alarm I have purchased from Maplin. The original was damaged when I altered the door in my workshop. They are great wee devices and SO LOUD if one forgets to switch the thing off. Potential burglars would die from sheer fright. I ordered the replacement on line and it arrived less than 24hours later. Brilliant service - as always.

    Was this review useful?  Yes No  40 7

  • This is a great little alarm and is very loud indeed. For the technically inclined, the door contact is a normally closed reed switch so the alarm can be adapted to use any kind of break-on-entry alarm sensor. I wanted to make a wire loop alarm for protecting bikes left in our caravan awning. I removed the reed switch and wired in a loop of wire with a plug and socket half way round so that it could be threaded through the bike frames and would alarm if cut or disconnected. It worked great.

    Was this review useful?  Yes No  19 8

  • Fab item - reliable and keeps my sheds secure. would recomend easy to fit and use.

    Was this review useful?  Yes No  14 8

  • The wire between the numerical pad and door sensor Is very short (20cm) so this alarm is not any use if you need to have the sensor at the top of the door as the keypad will need to be mounted too high. This situation could occur if you have double opening shed doors unless you can mount the keypad on the inside of one of the doors.

    Was this review useful?  Yes No  44 10


Ask a Question

10 of 24 Questions

  • Richard said:

    Hi, does the unit have a low battery alarm/beep? I am concerned that the unit may become disabled if the batteries are flat? Thanks

    Sorry it does not

    Was this answer useful?  Yes No  0 1

  • Cyclist said:

    If the contacts are reconnected, does that cancel the alarm or does it continue until deactivated properly? (if someone shuts the door, are they able to then ransack the shed undisturbed?)

    It is continuous until deactivated.

    Was this answer useful?  Yes No  0 1

  • Ross said:

    Can this product have more contacts fitted to it so it can cover more than 1 door or window?

    I’m afraid not .

    Was this answer useful?  Yes No  1 0

  • Rumor said:

    How long do the batteries last, ie duracell and can rechargable batteries be used?

    This would depend on how often the item is activated or armed and dis-armed, but typically we would say 6 – 12 months.

    Was this answer useful?  Yes No  0 1

  • Alan Smith said:

    What happens if the thief enters via a window ? Is this alarm restricted to a single door or window contact ?

    It only has the one contact, you would need one for the door and buy another for the window .

    Was this answer useful?  Yes No  0 0

  • Barry Parry said:

    What is the exit/entry delay on the alarm and is it possible to change it? Thanks

    Entry delay can be set to 3, 15 or 30 seconds Exit delay can be set to 10, 20 or 30 seconds

    Was this answer useful?  Yes No  37 9

  • Peter said:

    What batteries does it take and how many?

    This takes 3 AAA batteries

    Was this answer useful?  Yes No  25 9

  • Jo-Anne said:

    Can you turn the alarm off if needed.

    Yes the product does support that.

    Was this answer useful?  Yes No  20 1

  • Skelcher said:

    Can I extend the length of cable between mag sensor and the control by splicing in addition wire, is this multi core wire?

    We can see no reason why not.

    Was this answer useful?  Yes No  24 0

  • harry randles said:

    how many sensors come with this alarm system

    This has one sensor.

    Was this answer useful?  Yes No  13 0

Bulk Prices

Item code Item name Quantity Price
QS39N Garage/Shed Alarm (1+) £19.99

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