The PT-104 four-channel, temperature data-acquisition module measures temperature, resistance, and voltage. The high-resolution unit is for use with Pt100 and Pt1000 RTD sensors. No power supply is required, and the CE compliant unit uses RS-232 or USB interface (USB interface via included RS-232 to USB interface converter). Also included is Windows software for basic data acquisition and display. Omega Engineering Inc., One Omega Dr., Stamford, CT 06907, (203) 359-1660, www.omega.com