The EI-1022 is a universal temperature probe that consists of a National Semiconductor temperature sensor mounted in a plastic tube with a current limiting resistor. This probe when connected to 5 volts DC will output a nominal 3.0 volts at room temperature. The probe is suitable for air and surface applications.
The EI-1022 is intended to be connected to a LabJack for 5 volt power but can be used as a stand alone temperature sensor when connected to a DVM and a 5 volt source.
Multiple probes can be connected to a single LabJack, up to the number of analog inputs available on the device.