- Brand : U.S. Patrol

- Feature : System works when intruder touches the knob， Piercing Alarm Noise 130 dB (No dog noise) / Requires no special wiring， Simply hang on the inside door knob / Ideal for metal door knobs， at home， office， dorm， hotel room， anywhere. Does not work on plastic knobs or metal doors. / Takes 1 9 volt battery (not included) / Does not work on Plastic Door Knobs or Metal Doors. Ideal for metal door knobs

- Label : United States

- Manufacturer : United States

- PackageQuantity : 1

- ProductGroup : Single Detail Page Misc

- ProductTypeName : MISC_OTHER

- Publisher : United States

- Studio : United States

- Title : Watchdog Door Knob Alarm Hanging Portable Security System Safe Wireless 130dB