Waterproof Door Window Alarm 300m Music Function Black

About this item: Advanced features and 2 power supply modes: Multiple sensors and receivers can be easily added. Flexible configuration to suit your actual needs. Each receiver of this motion detector can work with up to 20 motion sensors. They can be freely paired. The receiver has an AC connection; the motion detector can be powered by batteries (included) or via a USB cable. (Note: The USB option does not charge the batteries). Large detection range: Our wireless infrared motion detector can detect all movements within its detection range. When moving objects are detected within the detection range (5 m x 110°), the motion detector can detect even a slight change with a blue light alarm. The signal transmission distance between the sensor and the internal unit is 150 m. You can use it for various purposes. This saves time and greatly assists you in your daily life. 5 volume levels and 38 ringtones: The doorbell receiver features 38 melodies and 5 adjustable volume levels from 0 to 110 dB. It's loud enough to keep track of what's happening outside at any time. You can set different ringtones for each receiver and transmitter. The LED doorbell light is especially suitable for the elderly and the hearing impaired. Four indicators on the sensors: a red indicator for a low-power alarm and three blue indicators for alarm detection. Easy installation: The sensor is powered by two AAA batteries or a USB charging cable, and the receiver plugs into a standard electrical outlet. Our doorbell motion sensor detects movement between 5 m and 110 degrees. It's easy to install and can be rotated to any desired position. We offer a 12-month warranty on the motion sensor. Should you be dissatisfied with the wireless doorbell, please do not hesitate to contact us. Suitable for multiple scenarios: Alerts business owners or homeowners with a wireless doorbell. Detects movement through the front or back door. Portable design for easy installation at home, in the office, at work, in retail stores, or for garages, driveways, or other locations. Please note that the motion detector's operating temperature is -4°F to 122°F; it is not waterproof, so keep it away from rain, snow, or water.