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Surface Mounted Wired Intruder Alarm Door Contact - China Magnetic Contact Switch, Magnetic Switch | Made-in-China.com
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Sensor de contacto de puerta inalámbrico, panel de alarma especial de contacto magnético para puerta, 433,92 Mhz, para monitoreo de puerta o ventana (DM-100C), 2 uds. - AliExpress
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