Recessed non-wired door sensors fit inside a drilled hole in the door frame or window sill, which requires more installation preparation but keeps the sensor mostly hidden when closed. Surface-mounted non-wired door sensors attach to the door or frame, making installation more accessible while leaving a slim sensor and magnet visible.

Check the sensor’s listed frequency, wireless protocol, encryption, and supervision requirements against your alarm panel or wireless receiver’s documentation, such as 319.5 MHz, 433 MHz, PowerG, or a panel-specific encrypted system. After confirming compatibility, enroll the sensor according to the panel instructions and test door or window activity, tamper alerts, and low-battery reporting.

Compare the sensor’s wireless protocol and panel compatibility, signal range, encryption, and whether it uses one-way or two-way communication with acknowledgment. Review battery type and expected service life, along with supervision features such as open and close reporting, low-battery alerts, tamper detection, and periodic status checks.

Non-wired door sensors can be used on residential and light commercial entry doors, interior doors, and windows to detect when an opening separates or closes. Surface-mount options fit many common installations, while recessed models can be installed within compatible wood, vinyl, or steel frames for a less visible appearance.