Wetted Materials:316 SS chamber with FEP diaphragm and Buna-N O-ring standard. Fluoroelastomer or EPDM O-ring optional.Temperature Limit:275°F (135°C). CSA approved: -20 to 90°C (-4 to 184°F).Pressure Limit:1500 psig (103 bar).Enclosure Rating:UL listed explosion-proof, Class I, Groups B, C, and D. Class II Groups E, F, and G. Meets NEMA 4X (IP66). CSA optional. Class I, Groups B, C & D. Class II, Groups E, F, & G -20°C ≤ Tamb ≤ 75°C T6 [optional -20°C ≤ Tamb ≤ 40°C T5] Type 4.Switch Type:Two SPDT snap switches.Electrical Rating:5 A @ 125/250 VAC, 5 A res., 3 A ind. @ 30 VDC. Gold contacts optional.Electrical Connections:18 AWG, 18″ (460 mm) long.Conduit Connection:3/4″ female NPT.Process Connection:1/4″ female NPT.Mounting Orientation:Any position.Set Point Adjustment:Internal nut.Weight:2 lb (.9 kg).Deadband:Approximately 10% of range.Agency Approvals:CSA, UL.