Ceiling PIR Motion Sensor Detector Why you need it Automatically turns lights on when someone enters the detection area and off after a preset delay, reducing wasted energy and eliminating the need to remember light switches. Flexible day or night operation and adjustable sensitivity make it suitable for many indoor locations. Compact, easy to install design with a detachable sensor head wire for straightforward mounting through a ceiling hole. Key features Adjustable light operation: choose nightonly detection or day and night detection using the DIP switch. Time delay settings: 5 seconds, 30 seconds, 3 minutes, 5 minutes, 8 minutes, or Off. Sensitivity control: second DIP switch selects low sensitivity (ON) or sensitivity (OFF); sensitivity may detect nonhuman motion such as wind. Detection: up to 6meter range with 360degree coverage when ceiling mounted; 100degree coverage when mounted horizontally. Compact sensor box: 5.6 cm x 3.4 cm x 2.4 cm. The sensor head wire is detachable to fit through a mounting hole. Electrical: 110 to 240V AC supply, 50/60 Hz, rated load up to 800W. Environmental: operating temperature range 10 to +40 degrees Celsius. Ingress protection: IP20. How it works The detector senses infrared energy from human movement. When movement enters the detection area, the sensor switches the lights on. After you leave and the selected time delay elapses, the sensor turns the lights off automatically. Use the first DIP switch to set operation mode: ON for nightonly detection, OFF for day and night detection. Use the second DIP switch to set sensitivity: ON for low sensitivity, OFF for sensitivity. Typical applications Toilets and bathrooms (zone 3 only) where automatic lighting improves convenience and reduces missed switchoffs. Hallways, stairwells, and storage rooms to ensure lights operate only when needed. Offices, utility areas, and other indoor spaces where people often forget to turn lights off. Installation notes Detachable sensor head wire allows the sensor head to be passed through a ceiling hole while the sensor box remains accessible above the ceiling. Follow electrical safety practices and local codes when wiring to 110 to 240V AC circuits. Adjust DIP switches for desired day/night behavior and sensitivity, and set the preferred time delay. Package contents PIR sensor detector Specifications Detection range: 6 meters Detection angle: 360degree ceiling installation, 100degree horizontal installation Time delay options: 5 seconds, 30 seconds, 3 minutes, 5 minutes, 8 minutes, Off Sensor box size: 5.6 cm x 3.4 cm x 2.4 cm Power supply: 110 to 240V AC Frequency: 50/60 Hz Rated load: 800W Operating temperature: 10 to +40 degrees Celsius IP rating: IP20 This ceiling infrared motion detector is a practical, adjustable solution for automatic lighting control in indoor spaces where convenience and energy savings are important.