Item Tag: 0.01 Pounds
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Wifi Alarm System for Home Security, 120Db Wireless Alarm Security System with F
(NOTE: Only support 2.4Ghz. Press to disarm. Press the arm key. Double-sided stickers and screws are included in the box. Note: Make sure the sensor is aligned with the magnet and the gap is less than 10mm. ).
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50PCS 5V Active Buzzer 2 Terminals ,Magnetic Electronic Continous Long Beep T…
Feature: All multi-chip integrated circuits using gold wire ball bonding, complex production process, long life, stable performance, high rate of qualified products.