2 to 1 PIR Infrared Sensors Wireless Doorbell Alarm Detector for Home / Office Filter-External Solid State Drives just plug in

just plug in

Outstanding Compatibility: 4-Port USB Hub for a variety of devices: laptops

0 high speed mode is not support by Windows 98

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2 to 1 PIR Infrared Sensors Wireless Doorbell Alarm Detector for Home / Office Filter-External Solid State Drives just plug inFeatures 1. Brand new and high quality. 2. Adopt advanced infrared detect technology. 3. No wiring design makes it simple to use and easy to install. 4. Up to 100m Wireless working distance in open area, 10m for indoor use. 5. Wireless installation, just place the sensor at the entrance. 6. The receiver volume is adjustable 7. The Receiver will Send chime sound and illuminate red LED lights when the PIR devices detect somebody is near. 8. Sensor