Check the listing for details. Wattstopper EOPC-100 RF PIR Ceiling Mount PIR Occupancy Sensor Low Voltage. Condition: New. Listed at 139.99 USD. New Wattstopper EOPC-100 RF PIR Ceiling Mount PIR Occupancy Sensor Low VoltageEOPC-100 wireless sensors operate on power supplied by two photovoltaic panels capable of reaching a full charge in 6 hours when the ambient light level is 20 footcandles (215 lux). Each sensor can be paired with multiple loads controlled by RF wall switches. Paired loads configured for automatic-on operation turn on when a sensor transmits an RF signal that it has detected occupancy. As long as the sensor detects occupancy it continues transmitting signals to the paired wall switch receivers. All paired loads turn off when no occupancy has been detected for the duration of the selected time delay.RF CommunicationsThe EOPC-100 sensor includes a non-directional helical antenna, so the sensor does not need to be oriented in a specific direction during installation. The RF (radio frequency) communication range is approximately 50’ to 100’, depending on product placement.Applications Wireless RF occupancy sensors are ideal for retrofit applications where it is difficult to install wiring to a ceiling mount sensor. The extended range EOPC-100 sensors are perfect for applications including small conference rooms, private offices, executive office, hallways and storage rooms. They detect minor motion up to 15’ away and major motion up to 22’ away when mounted at 8’. Coverage depends on a clear line of sight to the motion.360 Degree Sensor Field of View1200 Square Feet of Coverage AreaWireless RF occupancy sensors work with EOSW-100 Series RF wall switches Detection Signature Processing to eliminate false triggers and provide immunity to RFI and EMITrimpot for sensitivity adjustmentTest mode allows quick and easy set upIncludes plate for mounting to single- or double-gang junction boxes or ceiling tile Reversible magnetic/adhesive disc for surface mountingSensor coverage tested to NEMA Guide Publication WD 7-2000