Stainless Steel K-Type Thermocouple Insertion Probe 3" - Set of 2 K-type stainless steel thermocouple temperature probe - Set of 2 units 3 inch (7.5 cm) long insertion probe, 0.1 inch (2.5mm) diameter Miniature k-type connector works with many thermometers 36" cable, 2" handle Temperature Range -58 to 752F (-50 to 400C)