Manufacturer : Yokogawa Product No. : ZR22G-015-S-Q-C-T-T-C-A Product Type : Zirconia Oxygen Analyzers and High Temperature Humidity Analyzers Model : ZR22G = Separate type Zirconia Oxygen/ High Temperature Humidity Analyzer, Detector Length : 015 = 0.15 m (for high temperature use) (*1) Wetted Material : S = Stainless steel Flange (*3) : Q = JIS 5K 32 FF (for high temperature use) (*4) Reference Gas : C = Natural convection Gas Thread : T = 1/4NPT(Female) Connection Box Thread : T = 1/2 NPT Instruction Manual : C = Chinese A = Always  Shipping Weight : 8 Kg