description probe, thermocouple, beaded k-type the 80pk-1 is a type k bead thermocouple designed for general purpose temperature measuring applications. it has an extremely fast response time, due to the low thermal mass of the exposed tip. the 40 in. (1 m) teflon cable is terminated with a type k miniature thermocouple connector with 0.312 in. (0.792 mm) pin spacing. the 80pk-1 can be used with any temperature measuring instrument that is designed to accept type k thermocouples and that has a miniature connector input. the 80pk-1 must be used in teflon-compatible environments and is not suitable for liquid immersion. above 260°c (500°f), teflon will emit toxic fumes. california proposition 65 warning. features maximum voltage: 24 v ac rms or 60 v dc maximum for proper safe operation type-k thermocouple for general purpose applications measurement range: -40 to 260°c accuracy (with respect to nbs tables for special grade): ±1.1°c (2.0°f) over the range of 0°c to 260°c (32°f to 500°f) typically within 1.1°c (2.0°f) of nbs tables over the range of -40°c to 0°c (-40°f to 32°f) output: @ 25 °c (77 °f) = 1.00 mv (reference junction @ 0 °c) seebeck coefficient: 25 °c (77 °f) = 40.50 μv / °c measurement time (time constant): 2 seconds (for air at room temperature and one atmosphere of pressure moving with a velocity of 65 ft / sec) maximum temperature of bead: 260°c (500°f) specifications acme tools brand name fluke acme tools part number 80pk-1 additional contents polarity and color coding---chromel: + yellow; alumel: - red; outer jacket: black assembled weight (lbs) 0.2 california proposition 65 warning required yes country of origin united states globaltradeitemnumber (gtin) 00095969009744 internal supplier part # 750422 internet product code (ipc) 63c60b13bd2 manufacturer warranty 1 year package contents polarity and color coding---chromel: + yellow; alumel: - red; outer jacket: black package quantity 1 package weight 0.09 package weight (lbs) 0.09 probe length (in) 48 probe material chromel-alumel test lead probe ends bead; type k, mini-thermocouple connector with .792 mm (0.312 in) pin spacing upc 095969009744