58 RINGTONES & 5 VOLUME LEVELS Security Alarms Detection Chime has 58 ringtones and 5 adjustable volume levels for personal preferences. When the alert system receiver receives the signal from the motion sensor detector, the LED indicator light will flash
EXPANDABLE WIRELESS HOME SECURITY Flexible design according to your actual needs. You can choose the quantity of transmitter and receiver you like, which can be freely matched with each other. Each receiver of this motion sensor detects an alarm and can work with 20 motion sensors at most
SUPER LONG RECEIVING RANGE The operating range between the receiver and transmitter is up to 500 ft, and the infrared sensor has a range of about 13-16.5 ft, so when a thief tries to come, it will detect him and activate a 110 dB alarm
EASY TO INSTALLThis wireless bell only requires simply plugging the receiver into a socket and attaching the transmitter to a wall/door post/garden gate with the included accessories - self-adhesive and screws (contains a 3M double-sided tape, 2 screws, 2 dowels, 1 screwdriver) - no technical knowledge is required. Note: The receiver does not need batteries, and the transmitter already contains a battery
After-sales service 30 days return policy/24-hour reply/1-year refund/replacement through seller for any product defects and customer dissatisfaction. If you have any questions, please email us with your order number and questions