ECHOFLEX MOS-IR-UB PIR Ceiling Occupancy Sensor, 902 MHz 1900sqft 8188A1181-X-1 ETC MOS-IR-UB PIR Ceiling Occupancy Sensor, 902 MHz, 176 m2 (1,900 ft2 ) Coverage Overview The MOS-IR is a 360-degree ceiling-mount sensor that uses passive infrared (PIR) technology to detect occupancy. It uses wireless technology to communicate with Echoflex controllers to efficiently manage lighting and increase energy savings. The sensor harvests solar energy from both natural and artificial light sources. Its efficient energy management system eliminates the need for batteries in typical workplace settings. The MOS-IR is suitable for vacancy applications where energy codes require lights to be manually turned ON and automatically shut OFF or dimmed when the space is vacant. Precision circuitry also allows it to provide immediate response to new occupancy states, making it an ideal solution for partial-ON/auto-ON applications. The MOS-IR incorporates test features that provide installers with the ability to ensure sufficient energy harvesting, and occupancy detection without extra tools or software. Sensitivity settings for PIR can be adjusted to eliminate false tripping and ensure the right level of detection. The sensor has three different lenses to provide suitable PIR coverage: lenses A and B are intended for office applications optimized for ceiling heights of 2.4 to 2.7 m (8 to 9 ft). Lens C is intended for high bay applications, approximately 12 m (40 ft) ceiling height, and is equipped with a battery to guarantee consistent operation in locations that have low light and are difficult to access. Features Solar powered, wireless, PIR occupancy/vacancy sensor Ceiling mounted with 360 of detection Supports partial-ON and partial-OFF applications for energy code compliance Adjustable PIR sensitivity to fine-tune detection level Walk-Test feature allows installers to test operation and installation location Integrated LEDs indicate solar harvesting light level Operates in low light, 20 lux (2 fc), and up to 9 days in darkness without a battery Optional battery start assist Reliable radio reception range of 24 m (80 ft) - commercial office spaces (typical), up to 100 m (330 ft) line-of-sight Available in 902 MHz and 868 MHz frequencies Installation options: integrated magnets for T-bar ceiling, wire strap, screw mount, or double-sided tape (not included) Specifications