TPI CK23M Polyurethane K-Type Fast Response Contact Surface Probe with 90 Degree Angle Swivel Head Sensor and Sub-Miniature Plug, -58 to 932 Degree F, 39.4" Lead Length Fast response contact surface probe with 90 degree angle swivel head sensor Application: Contact temperatures on flat and uneven surfaces Probe tip: 32 Made of polyurethane Stem length: 4.9" with 90 degree bend