... head,industrial thermocouple,surface thermocouple,sensor)(1) Probe entry: M12×1, M16×1, M20×1, M22×1, M24×1, M27×1, G1/2, G3/4, NPT1/2 ... , NPT3/4(2) Wire entry: M20×1.5, G1 ... , Pt100 and others.Thick wall protective sheaths in stainless steel Thermostat thermocouple