4x Door & Window Entry Alarm Set. They also have a simple on/off switch, an instant alarm of 105 decibels. with double sided adhesive mounting pads.
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Fully expandable system, up to 32 HTZSAFE sensors can be added to the 1 receiver; and 1 sensor can be added to unlimited receivers. (Restart the receivers or sensors will not miss the records). SOLAR WIRELESS ALARMS : Solar powered, no wiring no need replace battery.
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1 - Vivint Smart Hub. 1 - Vivint Keypad (works with Smart Hub Panel). 1 - Vivint Smoke Detector. 2 - Water Sensors. 5 - Window/Door Sensors.
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The Door Stop Alarm is a wireless door stopper with a 120DB security alarm, designed for both home and travel use. It includes an alarm, door sensor, and batteries in a sleek black color. The door alarm is connected wirelessly and has a maximum resolution of 800x600. indoor locations. Perfect for personal safety and peace of mind. BONUS a travel door lock.
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Part Number: 802306043H2. Yale Smart Hub Alarm Backup Battery – Compatible with SR-HUB & SYNC Models (SR/IA 310, 320, 330, 340). Suitable for both SR-HUB 2.0 and SYNC models. Yale SYNC Alarm Systems : IA-310, IA-320, IA-330, IA-340.
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eBay
1、The alarm hosts for all PG-103 in this link are all WIFI GSM（2G） GPRS versions. 1 、 Los hosts de alarma para todos los PG-103 en este enlace son todas las versiones WIFI GSM 4G.
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