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The Honeywell Home Intrusion 5818MNL is a single-zone wireless mini receiver-transmitter with integrated magnet, designed for door and window contact applications in residential and light commercial security systems. The 5818MNL combines a compact transmitter and receiver in one unit, reporting open and close events to a compatible wireless security panel. Its built-in magnet eliminates the need for a separate magnetic piece in standard installations, simplifying the hardware footprint. Licensed security system installers and alarm technicians are the primary trade that specifies and installs this device.
The 5818MNL is suited for single-zone wireless intrusion detection on doors, windows, and other access points where a low-profile sensor is required. It is well-suited for retrofit installations where running wired zones is impractical, and for new construction where wireless zoning is preferred. The unit is categorized under wireless door and window contacts and is sold individually as a single unit.
Designed as an OEM-style wireless door and window contact for use with compatible Honeywell Home Intrusion wireless security panels and receivers. Refer to the panel documentation to confirm wireless frequency and enrollment compatibility before installation.
Installation should be performed by a licensed alarm or low-voltage technician in accordance with local codes and the panel manufacturer guidelines. Power down or disarm the security panel before enrolling or repositioning wireless transmitters. Mount the transmitter on the fixed frame and align the magnet on the moving door or window sash so the two components are within the manufacturer-specified gap distance. Do not exceed the rated separation distance between the transmitter and the panel receiver, as this will reduce signal reliability.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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