The Litelume Bi-level PIR Motions Sensor 20 ( MS20 ) is a self-contained motion and daylight sensor with a line voltage relay design. Suitable for installation inside commercial lighting fixtures for indoor or outdoor use. The IP66 outdoor rated MS20 uses passive infrared (PIR) sensing technology to detect motion in its coverage area and automatically dims and/or turns off lights when no occupancy is detected. Intended for mounting heights ranging from 8’ to 40’, offering 2 lens coverage choices and operating 0-10v dimming and/or non-dimming drivers.

See Spec Sheet


    • Input Voltage: 120/208–240/277VAC @ 50/60Hz
    • Relay Load Ratings: 800VA max @ 120VAC; 1000VA max @ 208–240VAC; 1200VA max @ 277VAC
    • Relay Inrush Current: Max 221A (peak)
    • Standby Time Delay Periods: 10 secs, 1 min, 5 mins (default), 15 mins, 30 mins, 60 mins
    • Dimming Time Delay Periods: 1 min, 30 mins, 60 mins (default), off (dimming always on)
    • Dimming Levels: 0%, 10%, 20% (default), 30%
    • 0–10VDC Dimming Current: 100mA max (sink)
    • Photodiode Sensitivity Range: 1 to 185 fc
    • Operating Temperature: –40 to +131 °F
    • Operating Humidity: 20 to 90% non-condensing
    • Weatherproof Rating: IP66 (when properly installed inside rated fixture)
    • Safety Certifications: UL/cUL listed, Class 2; IEC EN61000-4-5: 2kV L-N, 8/20 µsec surge protection
    • Regulatory Code Compliance: California Title 24

    Fixture Ordering Information

    MS20Bi-Level PIR Motion Sensor 20
    L3L3 Low Bay Coverage Lens
    L4L4 High Bay Coverage Lens
    LL-100Remote Control 100