Sell Circuitry & Parts◎✟♛Original Wireless Window Door Burglar Security Entry Alarm System Magnetic Senso best price

Features: - Easily mounted to Window / door(sticker is supplied in the back of product) - Magnetic sensor switch detects entry protecting your home or office whether you are in or out. Specifications: Material: Plastic Sound Level: 90 dB(A) Warning distance: 10mm MAX Power: 1.5V/LR44*3(Included) Package Included: 1 x Security Entry Alarm System Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.