Sell 433MHz Door Anti-theft Alarm Alert System Magnetic Contact Wireless Sensor Alarm for Home Window Doo best price

For your better shopping experience, please communicate with customer service in time about the unclear product information. Please check your receiving information before placing an order. I wish you a happy life Model Number：Magnetic Anti-theft Alarm System Power Source：Battery Doorbell Type：wireless Type：Magnetic Sensor Alarm Fdit Material：ABS Plastic Operating Voltage：1.5V Transmitting Frequency：433MHz Battery：1 * AAA Battery(Not included) Battery Life：About 2~3 Year If it is opening and closing 5 times per day