2 working modes available for choice: only LED Light flashing or both sound and LED flashing. 3 levels of volume adjustment: High or Medium or Low. 38 ringtones for choose. PIR motion detection distance is 3-5 meters. It can be successfully used for your home, office, store, hotel or other buildings. Ideal for alerting business owners who work in the back or out of sight when customers come in store. It can also be used as a signal when animal is ready to enter or leave. Applications: entry alert, intruder alarm, passageway alarm, bug detector, car alarm (indoor), security monitor , warehouse, power supply alarm closet, garage and tool shed monitor, mailbox sensor, front door or walkway detection. Wireless Doorbell Electric Door Chime Kit with 1 Receiver and 1 PIR Motion Detector Sensor Alert Visitor Security Alarm Never worry about surprised visitors again with our wireless driveway alert. This sensor doorbell alarm wireless infrared motion sensor, easy to use and set up. Bright LED indicators and a choice of 38 chimes allow you to customize your alerts. sensor alarm Infrared detection distance: 3-5 meters NOTE: Do not place the sensor finder in areas where the wind will move it, also try to keep the sleuth in a clear path to the receiver. Features: Receiver switch setting: 1) Music source: 38 different music optional, use external music button to complete. 2) The volume adjustment function: there are three kinds of volume (high, medium, low) for you to choose. 3) Adjust sound and silence sensor alarm Installation steps: 1. Place the correct batteries (3 AAA batteries, NOT INCLUDED) in the sensor, make sure the batteries have been placed in the correct positions. 2. Properly mount the sensor near the front door, window frame, driveway, walkway, backyard, or anywhere you need it. 3. Turn on the receiver and adjust the volume to the correct position. 4. Now the remote sensing system works with infrared sensing technology. 5. Place the receiver in an easily accessible place. 6. When the sensor detects movement, the receiver will emit an audible sound and the LED light will flash. 7. Please wait 30 seconds after turning on the sensor and receiver to activate. sensor alarm Baby Alert Alarm Buy Store Alert Home Security Aisle Detector Wireless Motion Detector for Door Windows