You can use this Sentry Plus arm and disarm key pad to control the main alarm system. The main advantage of this device is that you can then hide the main alarm out of sight and have just this device by your entry point. They come with a battery inside and this shoud last around 3-6 months depending on how often you arm and disarm from this key pad.
Sentry Plus Arm Disarm Key Pad
UK Postage & Packing: £2.95
Overseas Postage & Packing: not available for this item, please contact us for info
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