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 Press-Fit Magnetic Reed Contact Switch. 49-516 Safe House Window Sensor for N. Circuits, 10 millisecond contact time. 49-507 Safe House Security Warning Labels (4). All are new unopened old stock. Never used, connected, or tested. Plastic has yellowed on some. The first photo shows all items. The second photo shows one of each type. Please see our other Safe House listings.