... of Thermocouple head (thermocouple,thermocouple head,industrial thermocouple,surface thermocouple,sensor)(1) Probe entry: M12×1, M16×1, M20×1, M22 ... ×1, G1/2, G3/4, NPT1/2, NPT3/4(2) Wire entry: M20×1.5, G1/2, G3/4, NPT1/2 ... and others.Thick wall protective sheaths in stainless steel Thermocouple sensor cap