Door/window opening sensor/alarm
Feel safe while sleeping in your home. The HS 21 alarm signals when the door or window is opened. The device emits a ding-dong sound signal or an alarm. The 100 dB alarm is guaranteed to be heard if someone...
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Product description
Feel safe while sleeping in your home. The HS 21 alarm signals when the door or window is opened. The device emits a ding-dong sound signal or an alarm. The 100 dB alarm is guaranteed to be heard if someone tries to break into your home. It is possible to turn off the device's alarm. The safety device can be attached quickly and easily using the adhesive on the back. The alarm is powered by 3 AG13 button cells (1.5 V). Choose the quality products and order from our online store!

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