... Brass Connection 4.Glycerine, Flange,Bracket, CE ROHS Bimetal thermometer Manometer is widely used in petroleum,petrochamical,power,pharmaceutical, ... chamical engineering industry.Compared to the glass thermometer,it is more convenient and inexpensive.And it ... as defined in EN837-1 Refer to EN 837-213. Temperature Temperature EffectOperating: -20 to +90 ºC Variation in indication ...