Motion Detector Doorbell for Business Entrance, Passageway, Motion Detector Alarm, Wireless Outdoor Alarm, Wireless Home Alarm, 1 Sensor and 1 Receiver

5 IN 1 MODE: Home security alarm/welcome signal/doorbell/color light/warning light
HIGH SENSITIVITY: Our wireless home alarms are equipped with high-sensitivity infrared sensors to detect movement quickly and accurately. The detection range is 6 to 8 meters.
EASY WIRELESS INSTALLATION: No wiring is required; simply attach the doorbell's infrared sensor to the wall (using adhesive tape or screws), and it will detect movement in its surroundings, whether it's a driveway, porch, door, shed, office, sidewalk, pool, store, and much more.
WIDE DETECTION RANGE: With a distance of up to 280 meters between the receiver and transmitter of the front door alarm, you can place the sensor at the ideal distance from the receiver for effective monitoring. The independent 40mm speaker has a maximum output volume of 95dB.
22 RINGTONES AND 8 WELCOME BELLS: The receiver comes with 22 different ringtones, from melodic sounds to a simple basic buzzer for personal preference, and 8 welcome bells for retail stores.
WIDE APPLICATION: The outdoor motion detector is suitable for mailboxes, driveways, galleries, gates, doors, passageways, apartments, offices, hotels, shops, and many other indoor locations; the non-weatherproof motion detector doorbell is not suitable for outdoor use. It can also be used for child safety and to remind the elderly.
TWO POWER OPTIONS: The motion detector can be powered by a USB plug or batteries. The main unit uses 3 x 5 batteries, and the sensor uses 3 x 7 batteries. Replace the batteries every 5 to 7 months. Note: Batteries and USB cable are not included.