49-521 Safe House Vibration Detectors. 49-504A Safe House Foil Block Connectors (3 pr). 49-495 ARCHER SPST Magnetic Contact Switch for Closed-Circuit Alarms. 49-518 Safe House Window/Door Disconnect Contacts for Use with Foil or Vibration Sensors. 49-482 Safe House 135 Degree Fahrenheit Heat Sensor. 49-496 Safe House concealed Magnetic Switch for Closed Circuits. 49-505 Safe House […]