MACLEAN Infrared motion sensor MCE201W — passive IR detector for motion detection

MACLEAN Infrared motion sensor MCE201W is a passive infrared (PIR) detector engineered to detect human presence by sensing rapid changes in infrared radiation. Designed for indoor mounting, this compact motion sensor integrates with alarm systems, lighting control units and energy-saving automation to trigger actions when movement is detected. The device provides discreet presence monitoring for homes, offices and commercial interiors where reliable motion detection is required.

Advantages

The PIR sensor offers accurate motion detection with low power consumption and compact dimensions that make installation unobtrusive. Its passive infrared technology responds to heat movement rather than visible light, ensuring operation in dark and variable lighting conditions. Designed for simple integration, the sensor supports common control systems for alarms and lighting, helping to reduce energy use by activating systems only when presence is detected.

Suitable for

• Triggering alarm systems in residential and commercial premises
• Automatic lighting control in corridors, stairwells and offices
• Energy-saving controls for HVAC and ventilation systems
• Presence detection for meeting rooms and shared spaces

Key specifications

• Detection principle: passive infrared (PIR)
• Application: indoor mounting
• Detection target: human motion and heat sources
• Typical uses: alarm inputs, lighting automation, energy-saving control
• Size: compact housing suitable for wall or ceiling placement
• Operating environment: indoor temperatures and common interior lighting conditions

How to use

Mount the sensor on a wall or ceiling in a position with clear view of the monitored area, avoiding direct exposure to heating vents or reflective surfaces that may affect infrared readings. Connect the sensor to the control panel or lighting controller following the installer manual and wiring standards for the target system. Adjust sensor orientation and height to optimize the detection zone for typical walking paths and entry points. Verify correct operation by walking through the monitored area and confirming that connected systems respond as expected.

Usage recommendations

For reliable detection, place the sensor 2–3 meters above floor level and avoid pointing it toward moving objects such as fans or curtains. Regularly check wiring connections and keep the sensor housing free of dust and obstructions. When integrating with lighting or alarm systems, configure any time-delay and sensitivity settings in the controller to match usage patterns and reduce false triggers.