WIKA #52962415 BIMETAL THERMOMETER. -50 TO 50 � C 4 "VAST 9" Type: Bimetallic- High pressure gauges with stainless steel housing PCS Visor Diameter: 100mm or 4 in. Bimetal thermometer, Process-Industry-Series Specifications according to data sheet: TM 55.01 Case: stainless steel Stem Material: stainless steel Model: S 5550, nominal size 100, adjustable stem and dial Accuracy Class: class 1 per EN 13190 Design of Connection: 4, compression fitting, sliding on stem Unit: �C Scale Range: -50 �C ... +50 �C Process Connection: 1/2" NPT Stem Diameter: 6 mm