Extech RH200W-T Hygro-Thermometer Transmitter, Wireless, 433MHz, Up to 98ft

Extech's RH200W-T is a wireless temperature/humidity transmitter for RH200W. You can connect up to 8 wireless transmitters to remotely measure temperature/humidity levels up to 98ft (30m) away. Ideal for multi-room environmental monitoring for restaurants, manufacturing facilities, offices, homes, greenhouses, and storage/archive buildings.