In addition to an RS485 interface with Modbus RTU protocol, a humidity-and-temperature transmitter and a moisture-in-oil transmitter have an Ethernet interface with Modbus TCP protocol. A multi-functional 3.5" TFT color display provides an overview of the measurement task and allows the user to perform all settings directly on the device. An integrated datalogger stores up to 20,000 values per measurand. Model EE310 measures relative humidity and temperature and calculates dewpoint temperature, frost point temperature, wet-bulb temperature, water vapor partial pressure, mixing ratio, absolute humidity and specific enthalpy. Model EE360 is intended for monitoring the moisture content in hydraulic, lubrication and insulation oils as well as diesel fuel. The device measures water activity (aw) and temperature (T), and it calculates the absolute water content (x) in ppm.