Magnetic Contact Sensor SATEL B-1T-BR — surface-mounted with terminal clamps (reed switch)

The SATEL B-1T-BR magnetic contact sensor is a surface-mounted reed switch designed to detect opening of doors and windows. This compact device is intended for indoor use and provides a simple, wired input for alarm and security systems. With terminal clamps for secure wiring, the sensor is suitable for installations where a visible, low-profile contact is acceptable and reliable perimeter monitoring is required.

Advantages

The surface-mounted design enables quick installation without recessing into frames or walls, and the reed switch mechanism offers reliable, long-term operation with minimal maintenance. Terminal clamps provide straightforward and secure connection to control panels or alarm loops. The compact dimensions and neutral finish allow the sensor to be placed discreetly on a variety of door and window frames while maintaining consistent performance for perimeter security.

Suitable for (use cases)

• Monitoring of interior and exterior doors in residential and commercial premises
• Window opening detection on frames where surface mounting is preferred
• Integration into wired alarm, access control, and automation systems
• Replacement or retrofit installations where recessing is not possible

Key specifications

• Type: Surface-mounted magnetic contact (reed switch)
• Mounting: Surface mounting on door or window frame
• Connection: Terminal clamps for wired connection
• Use environment: Indoor use
• Dimensions: compact, low-profile housing suitable for visible installation
• Function: Opening detection for perimeter monitoring

How to use

Mount the sensor body on the fixed frame and the magnet on the moving part (door or window sash) so that they align when closed. Secure wires to the terminal clamps and connect to the alarm control panel or input circuit following the system wiring diagram. Test the contact by opening and closing the door or window to confirm the alarm panel registers the change of state. Ensure that the magnet and sensor maintain the manufacturer-recommended gap for reliable switching.

Usage recommendations

Place the device away from heavy metallic obstructions and strong magnetic fields that could affect switch operation. For reliable performance, use appropriate cable routing and strain relief, and verify polarity and tamper circuits if present in the system. Regularly inspect mounting and wiring during routine maintenance to ensure consistent perimeter monitoring.