SATEL OPXM-1 DG Magnetic Contact Sensor in Hermetic Enclosure

Unauthorized entry through doors, windows, or other movable barriers is a primary security concern for any property. The SATEL OPXM-1 DG magnetic contact sensor provides a robust solution with a hermetically sealed design that ensures reliable detection even in challenging environmental conditions. This wired sensor consists of a magnet and a reed switch unit, both housed in durable ABS plastic enclosures that are fully sealed against moisture, dust, and other contaminants. When the protected surface is opened, the magnetic field is interrupted, triggering an alarm signal through its normally closed (NC) contact. With an operating gap of up to 20 mm, it accommodates slight misalignments and irregular surfaces, making installation forgiving and performance consistent.

Who is it for

This sensor is ideal for professional security installers, facility managers, and homeowners who need a dependable perimeter detection solution for doors, windows, gates, and drawers. Its hermetic enclosure makes it particularly suitable for environments where dust, humidity, or temperature fluctuations could compromise standard sensors, such as warehouses, garages, basements, or outdoor gates with some protection. Whether securing a residential entry point or integrating into a larger wired alarm system, the OPXM-1 DG delivers the reliability expected from SATEL.

Main features

• Hermetically sealed ABS enclosure protects internal components from moisture and dust.
• Normally closed (NC) contact configuration for compatibility with standard alarm panels.
• Operating gap up to 20 mm for flexible installation on uneven surfaces.
• Surface mount with screw-on installation for secure fixing.
• 1-meter cable length for convenient wiring to the control panel.
• Wide operating temperature range from -10°C to +55°C.

Specifications

• Product type: Magnetic contact sensor
• Connectivity: Wired (2-wire)
• Contact configuration: Normally closed (NC)
• Max switching voltage: 20 V DC
• Max switching current: 20 mA
• Max switching power: 3 W
• Operating gap: Up to 20 mm
• Enclosure material: ABS plastic
• Color: White
• Cable length: 1 m
• Operating temperature: -10°C to +55°C
• Mounting: Surface mount, screw-on
• Number of components: 2 (sensor and magnet)
• Application: Doors, windows, gates, drawers

Tips

For optimal performance, install the sensor on the fixed frame and the magnet on the moving part, ensuring alignment within the specified gap. Avoid mounting near strong magnetic fields or metal surfaces that could interfere with the reed switch. Use the included screws for a secure fit, and seal any cable entry points if installed in damp environments.