HH802U is a highaccuracy J/K input thermocouplethermometer. HH802U featurestwo 5 digit displays for temperatureand a third display for elapsed time.HH802U also features a built inUSB port for use with the optionalWindows data logging software andcable, as well as a DC power jackfor extended use with the optionalAC adapter. HH802W model replaces the USBport with a built in wireless interfacefor cable free data transmission to aPC when purchased with theoptional wireless receiver andWindows software. The HH802U isa dual input meter and includes a REL recall, Hi/Lo limitrecall and cold junctionadjustment feature.