HommyFine Home Security Motion Sensor Alarm Detector, Wireless Business Visitor Door Entry Chime Alart with PIR Motion Sensor Detector and Plug-in Receiver for Business Home Office or Shop

Working Range up to 328 feet (100 meters, in open area) between the infrared sensor and receiver allowing you to place it a good distance from the receiver to warn you of arrival and departure of family members, unwanted guests or solicitors, or anyone who visits your home or business
Alarm system with a total of 38 different ring tones to greet your guests. 3 levels of volume control: loud, medium, quiet. 2 Alarm mode: ringtones + LED lighting or only LED lighting.
The range of the sensor is 3 to 7 meters vertically and 3 to 5 meters horizontally.
Sensor supply operation: 3xAAA batteries or 5V USB power supply (not included in delivery), receiver supply operation: DC 110V – 240V or 5V USB power supply.
Ideal for front doors, window frames, driveways, walking paths, and anywhere in your home you want to be alerted to motion. Also great to alert business owners that are working in the back, or out of sight, to customers entering their store.