Magnetic Door Window Contact Sensor RC33B NO Recessed Reed Switch Concealed Security

RC33B NO Recessed Magnetic Window and Door Contact 1 Set Overview A recessed magnetic reed switch designed as a contact sensor for window and door alarm systems. This RC33B NO unit uses a normally open reed contact and a separate magnet for concealed installation in frames and panels. Key benefits Discreet installation: Recessed design fits inside door and window frames for a concealed, lowprofile appearance. Clear switching behavior: Normally open (NO) contact closes in the presence of the magnet, offering predictable operation for alarm circuits that require NO inputs. Simple integration: Works with standard alarm panels and security systems that accept a normally open reed contact. Reliable sensing: Magnetic reed switching provides fast response to magnet separation or approach, suitable for intrusion detection and access monitoring. Compact and practical: Small form factor allows mounting in narrow frame slots and retrofit installations. Features and specifications Model: RC33B Contact type: NO (Normally Open) reed switch Configuration: Recessed magnetic contact with separate magnet piece Set quantity: 1 set (one switch and one magnet) Intended use: Window and door contact for alarm and monitoring systems Installation: Recessed mounting in frame or panel for concealed placement How it solves common problems Prevents visible tampering by hiding the sensor inside the frame, reducing vandalism and accidental damage. Provides a straightforward NO contact for systems that require a closed circuit when the magnet is present, minimizing wiring complexity for compatible panels. Compact size allows use where surfacemounted sensors would not fit or would be visually intrusive. Typical applications Home and apartment security: Install in door or window frames to detect opening and trigger an alarm or notification. Cabinet and equipment protection: Use in display cases, cabinets, or equipment enclosures to monitor unauthorized access. Access control and automation: Integrate with alarm panels or control relays to trigger lights, locks, or logging when openings occur. Installation notes Designed for recessed mounting; ensure frame has suitable clearance and a matching slot for the switch and magnet. Confirm system compatibility with a normally open contact type before wiring. Use appropriate wiring practices and mounting hardware for secure, stable installation. What is included One RC33B NO recessed magnetic reed switch set, consisting of the reed switch assembly and its matching magnet. This RC33B NO recessed magnetic contact provides a compact, concealed solution for detecting window and door openings in alarm and monitoring applications where a normally open reed contact is required.