Magnetic Contact DSC PG8303 wireless recessed door/window sensor, 433 MHz

DSC PG8303 is a wireless recessed magnetic contact designed for doors and windows where a concealed installation is required. Operating on the 433 MHz frequency, the sensor monitors open and closed states and includes tamper detection to alert installers or alarm systems if the unit is disturbed. The compact form factor allows mounting inside frames and sashes to keep visible surfaces clean and maintain the aesthetic of residential or commercial premises.

Advantages

The recessed design provides an unobtrusive security solution that is largely hidden from view while still delivering reliable open/close detection. Wireless operation on 433 MHz simplifies installation by removing the need for wiring between contact and control panel. Built-in tamper detection increases protection by reporting case or mounting interference. The unit's compact dimensions and simple mechanical principle ensure long service life and compatibility with many alarm systems that support standard magnetic contacts.

Suitable for

• Concealed mounting on interior and exterior door frames
• Hidden installation in window frames and sashes
• Residential alarm systems where aesthetics are important
• Commercial premises requiring discreet intrusion detection

Key specifications

• Operating frequency: 433 MHz wireless communication
• Type: Recessed magnetic contact with tamper detection
• Detection: Open/closed status monitoring for doors and windows
• Installation: Designed for in-frame mounting, compact form factor
• Power: Battery-powered wireless operation (replaceable battery expected)

How to use

Prepare the door or window frame by drilling the appropriate recesses for the contact and magnet according to the frame material and dimensions. Insert the contact body into the frame recess and secure it so that the magnet aligns with the contact when the door or window is closed. Pair the wireless contact with the alarm control panel following the panel manufacturer's enrollment procedure for 433 MHz devices. Verify open and closed state reporting and test tamper monitoring before completing the installation. Replace batteries as indicated by the control panel or manufacturer guidance to maintain reliable operation.

Usage recommendations

Install the sensor in a dry location protected from direct weather exposure; for exterior installations use appropriate frame placements to avoid moisture ingress. Test the wireless signal strength at the intended mounting point to ensure reliable communication with the alarm panel. Follow the alarm system manufacturer's guidelines for device enrollment and battery replacement intervals.