Get double the protection with the 2x Defender Window Alert Alarm EL00001 and MKA Personal Safety Alarm AL00004. These wireless alarms are perfect for indoor use and come with aaa batteries. The alarms are compatible with Windows and feature a 120dB sound that will alert you as soon as your window is opened. These alarms have never been used and have been in storage for a long time, they have the plastic tags still attached to protect the batteries, but batteries may not work if not used for a long time. The outer packaging is a little grubby.
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