Physitemp's original Thermes high accuracy ISA based data acquisition system has been redesigned to create a more versatile USB model. The new system requires no internal connections to your computer and simply connects via an external USB port on your laptop or desktop computer. Two versions of the data acquisition system are available. The standard version, THERMES USB, is connected to your computer USB port. The wireless version - THERMES USB WFI, can be either directly connected to a USB port or, with the included wireless receiver, positioned up to 100 feet from the host computer. Each unit will accommodate up to 7 type T thermocouple sensors and multiple Thermes units may be connected to the same computer for more thermocouple inputs. A high accuracy electronic cold junction compensation circuit maintains typical system accuracy of ±0.2 degrees C over an ambient temperature range of 15 to 35 degrees C. Individual offsets may be added to each input in software to facilitate individual calibration of each channel. The THERMES USB WFI is a Type T Thermocouple data acquisition system with a secure 2.4GHz wireless link to its host computer. Specifications for the device are the same as the THERMES USB except for its wireless capability. The THERMES USB WFI includes a wireless receiver that is connected to the host computer via a USB port. All communications between the host computer and THERMES pass through this device. The THERMES USB WFI may be connected directly to the host computer via a standard USB port (from which it also draws its power) or operated remotely from the BP-1 battery pack. A wall mounting USB power supply is also provided with THERMES USB WFI. Please note that software is needed for the Thermes USB. Please seeDasyLabsoftware