Fieldpiece ATWB1 K-Type Wet Bulb Thermocouple with Alligator Clip The wrap-tab allows the thermocouple wire to conveniently store on the plug Just wrap the excess wire around the wrap-tab No more tangled messes in your tool bag Temperature range: -50 to 150-Degree F K-type nickel chromium/nickel aluminum Probe insulation: Calibration and atmosphere will affect maximum useful temperature in applications The wire insulation is designed to withstand a maximum continuous use at 400-Degree F