The PT-104 USB/Ethernet data logger from Pico Technology, St. Neots, U.K., records 4 channels of temperature, voltage, and resistance in any combination. Compatible with standard Pt100 and Pt1000 platinum resistance thermometers including 2-, 3-, and 4-wire types, its temperature measuring range is –200°C to 800°C with 0.01°C accuracy and 0.001°C resolution. Resistance ranges are 0–375 ohm and 10 kilohm with 1 microhm accuracy; voltage ranges are 0–115 mV and 2.5 V with 156 µV accuracy. Conversion resolution in all modes is 24-bit. Software is included.