Switches and Lighting Controls, Occupancy Sensors, Adaptive TechnologyUltrasonic Ceiling Sensor, 2000 Square Feet Coverage Brand:Hubbell Wiring Device-KellemsCatalog ID:ATU2000CSwitches and Lighting Controls, Occupancy Sensors, Adaptive TechnologyUltrasonic Ceiling Sensor, 2000 Square Feet CoverageUltrasonic (US) technology senses occupancy by bouncing sound waves (32 kHz – 45 kHz) off of objects and detecting a frequency shift between the emitted and reflected sound waves. Movement by a person or object within a space causes a shift in frequency, which the sensor interprets as occupancy. While US occupancy sensors have a limited range, they are excellent at detecting even minor motion such as typing and filing, and they do not require an unobstructed line-of sight. This makes US technology sensors ideal for an application like an office with cubicles or a restroom with stalls.”Install and Forget” operation. Auto-adjusting adaptive technology eliminates manual adjustmentsProduct detailsGeneralApplicationCatalog NumberATU2000CColorWhiteEnvironmental ConditionsIndoor Dry Unless Protected By Additional MeansEU RoHS IndicatorYesHumidity0% to 95% non-condensing relative humidityIndicator(s) TypeUltrasonic= Green LEDItem TypeLow voltage Ceiling SensorsLoad CapacityLoad Is A Function Of The Control UnitMaterialABS (Acrylonitrile butance styrene – Thermoplastic polymer)Material – Mounting HardwareScrew MountingMounting TypeCeiling MountOEM Brand NameHubbell Wiring Device-KellemsOperating Cycles6,000 Cycles MinimumOperating Temperature32 Deg F to 104 Deg F (0 Deg C to 40 Deg C)PerformanceControls – Ambient Light – 1 to 1000 foot candlesControls – Sensitivity – Adaptive 0 to 100%Controls – Time Delay – Test (8 seconds), adaptive 8 to 40 minutesElectrical – Power Requirements – 24V DC nominal, 33mA from Hubbell CU series control unitEnvironmental – Operating Temperature – 32°F to 104°F (0°C to 40°C) with rate of change not exceeding 20°F (11°C) per hourEnvironmental – Storage Temperature – -20°F to 150°F (-29°C to 65°C), 0% to 95% non-condensing relative humiditySensing Indicators – Ultrasonic – Green LEDSeriesUltrasonicStorage Temperature Range-20°F to 150°F (-29°C to 65°C)StyleCeiling MountTypeSensorsSensorsUPC783585392493