GJX 2026 New 4Pcs Wireless Knob Hanging Burglar Alarm Sensor Battery Powered for Home Office Garage Shop Warehouse

Description: When someone opens or touches the door handle from either side the alarm will generate a loud sound to inform you that there is an intruder. Works as a theft alarm with an alarm up to 120dB. Easy to use and install no wiring needed (requires DC 6F22 9V batteries not included); just simply hang it inside your door handle. Perfect for use as a travel alarm and great for home hotel dorm etc. The sensitivity may be affected by the composition of the handle. Specification: Material: Plastic Size: Approx. 10x5.5x2.5cm / 3.94x2.17x0.98 inches Power: DC 6F22 9V Package Includes: 4 Pieces Door Handle Alarms Note: There may be slight differences in size and color due to manual measurement and monitor settings.