Designed for demanding applications and harsh outdoor environments, the Omega zSeries wireless sensor/transmitter system provides Web-based monitoring of temperature, humidity, and barometric pressure, as well as thermocouples and any transducer with analog voltage or current output. These rugged sensors are encased in weatherproof, polycarbonate NEMA4/IP65 rated housing and can run on low voltage power, 10 to 30 Vdc or 24 Vac. The coordinator/meter-controller connects directly to an Ethernet network and serves active web pages to display and chart the data.