United Electric 800 Indicating Temperature Switch - 2 SPDT Switch Output. Adjustable Setpoint Range: 0° to 250° F. Max Temp: 300° F, Scale Div: 5°. Bulb (OD x Length): 3/8" x 4-1/2". 304 Stainless Steel Bulb and 6-Foot Capillary. NEMA 4X/7/9/IP66 Epoxy-Coated Diecast Aluminum Enclosure, Lexan Cover and Faceplate, for use in Class I/II, Div 1 and 2, Class III, Class I Zone 1 Areas