The Maestro® Dual Technology (Dual Tech) Occupancy Sensor Switch applies our exclusive XCTT Technology to the ultrasonic as well as the passive infrared technology in this sensor to create a product that can detect very fine motion, such as typing. This product also includes all of the great features found in the rest of the MaestroR sensor family, including: adaptive relay switching, smart ambient light detection, and simple button presses for changing settings. The Maestro® Dual Tech Occupancy Sensor Switch is available in single-circuit and dual-circuit versions. The dual-circuit version can be used to meet many of the Title 20/24, ASHRAE 90.1, and IECC code requirements such as “automatic shutoff” and “multi-level lighting control”. Features: • XCTT Technology for major, minor, fine, and very fine motion detection • 180° sensor field-of-view • Tamper-resistant PIR lens • Up to 900 ft2 (81 m2) major motion coverage and 400 ft2 (36 m2) minor motion coverage • Two Ambient Light Detect (ALD) options: - Learning ALD Mode: - Uses adaptive algorithm. - Sensor learns user’s preferred light level over time. - Fixed ALD mode: - Four selectable light level thresholds: Hi, Med, Low, Min • Can be set to Auto-ON/Auto-OFF or Manual-ON/Auto-OFF per circuit • Dual-circuit models (MS-A202, MS-B202) meet Title 24 requirements for multi-level lighting control. • Single-circuit “Vacancy” models (MS-A102-V-XX, MS-B102-V-XX) available to meet Title 24/Title 20 requirements for vacancy sensors. • Adjustable timeout for each circuit (1, 5, 15, or 30 minutes) • Sensitivity adjustment - PIR (Hi, Med, Low, Min) - Ultrasonic (Hi, Med, Low, Off) • Switches all lighting loads: incandescent, halogen, ELV, MLV, CFL, LED, magnetic fluorescent, electronic fluorescent • Switches fan loads at 120 V~ • DO NOT require neutral wiring