Magnetic Door/Window Contact SATEL B-1PT-BR — surface-mounted, brown, normally closed

The SATEL B-1PT-BR is a surface-mounted magnetic contact designed for monitoring doors and windows. Housed in a brown plastic casing, this compact sensor uses a reed switch configured as normally closed (NC) to signal the opening and closing of frames. It is suitable for integration into alarm and access control systems where visible mounting is acceptable, and its small size allows installation on wooden or metal frames with straightforward wiring connections.

Advantages

This magnetic contact provides reliable, long-term detection of opening and closing events thanks to its reed switch in normally closed configuration, which simplifies wiring and reduces false alarms in standard installations. The brown plastic housing offers a discreet appearance on darker frames and is resistant to everyday indoor conditions. Its compact surface-mounted design enables quick fitting without the need for deep recesses in the frame.

Suitable for

• Monitoring doors and windows in residential and commercial alarm systems
• Integration with access control systems to detect unauthorized openings
• Surface-mounted applications on wooden or metal frames where visible mounting is acceptable

Key specifications

• Mounting type: surface-mounted
• Housing material: plastic
• Housing color: brown
• Contact type: reed switch, normally closed (NC)
• Sensing method: magnetic contact for opening/closing detection
• Application environment: indoor use on door and window frames
• Form factor: compact, low-profile

How to use

Position the main unit and magnet on the door or window frame so the two parts align when the frame is closed. Mount both parts on the surface using screws or appropriate adhesive, ensuring the gap between them meets the manufacturer's recommended distance for reliable operation. Connect the reed switch leads to the alarm or access control input following the system wiring diagram; the normally closed configuration means the circuit is closed when the frame is shut and opens when the frame is opened. After installation, test the contact by opening and closing the door or window to verify correct signaling to the control panel.

Usage recommendations

For stable performance, avoid mounting the contact near strong electromagnetic sources or large ferromagnetic objects that may affect the magnetic field. Use screws appropriate for the frame material and check connections periodically for corrosion or looseness. When used outdoors or in humid environments, ensure additional protection or choose an appropriately rated enclosure, as this unit is intended for standard indoor frame installations.