Attributes . Ability to Disable U/S (Ossmt-M). for Added Flexibility, Ossmt-G Has the Ability to Disable Both PIR or U/S, Adjustable Horizontal Field-Of-View (PIR May be Adjusted Between 180 Degrees and 60 Degrees of Arc by Using Integral Blinders Located on Either Side of the Lens). No Masking Required, Ambient Light Recognition: Integrated Light Sensor Prevents Lights From Turning on When the Room is Adequately Illuminated by Natural Light, Exclusive Leviton H.I.S. Circuitry. Specifically Designed to Handle Today's High Inrush Electronic Ballast Loads and Offer Unmatched Durability and Service, Exclusive Walk-Through Feature Provides Increased Energy Savings by Not Leaving the Lights on for An Extended Period After only Momentary Occupancy, False Detection Circuitry, Fast, Simple Installation: Fits in a Standard Wall Box and Replaces a Single-Pole Wall-Switch, Led Indicator Light Flashes When Sensor Detects Motion to Verify Detection is Active. Green Flashes for Ultrasonic, Red Flashes for PIR, Low-Profile Design Eliminates Obtrusive "Scanning-Device" Look. Elegant Decora Wallplates Complement Any Interior for Sleek Aesthetics, Neutral and No Neutral Options Available. Sensor can be Ganged Together With Other Units in a Multiple-Switch Wall Plate, Segmented Fresnel Lens Provides Optimum Sensitivity and Performance. Designed With An Extensive "Minor Motion" Area Where Even Slight Body Movements will be Detected, Small Motion Sensitivity (U/S): Ultrasonic Technology Provides Excellent Minor Motion Sensitivity, True Zero-Cross Relay Switches At the Zero Crossing Point of the Ac Power Curve to Ensure Maximum Contactor Life and Compatibility With Electronic Ballasts, Uses Decora Wallplates and Coordinates With Leviton's Popular Line of Decora Wiring Devices, Vandal Resistant PIR Lens . Names