Bourdon Tube Measurement With Resettable Maximum Pointer; Up To 4 User Adjustable Switches (Contacts) For Control And Alarms; 6 Inch (150Mm) Dial Face With An Angular Dial Span Of 90? For Easy Viewing; Built In Spring Loaded Pointer For Switch Field Testing; Large Dial Face For Maximum Readability; Uv-Stabilized Polycarbonate Lens (Resists Yellowing With Age) For Lifetime Readability; Durable Design For Survivability In Harsh Environments; Molded Neoprene Channel Gasket Is Uniformly Clamped In Place, Protecting Against Water Entry Around Entire Lens; Free-Breathing Housing Reduces Internal Condensation Buildup. Dual Breathers Act As Vacuum Breaker To Prevent Unwanted Moisture Intake; Magnetically CoupLED Maximum Pointer Is Integral With Lens For Ease Of Resetting And Moisture Path Elimination; Rugged Construction With Corrosion Resistant Materials; Die-Cast Aluminum Housing Resists Corrosion With Two-Part, Long-Life Epoxy Finish; Up To Four Switches (Contacts) Can Be Set By The Factory Or Can Be Easily Set Or Changed In The Field; Dial Temperature Range, Number Of Switches (4 Maximum), Switch Settings And Wiring, Electrical Connection Type, Cable/Wire Types And Lengths, Probe Dimensions, And Thermo Well Characteristics Can All Be Customer Specified To Meet Specific Application Requirements; Mounts Directly Onto Well (Pocket); ?One-Screw? Access; Bezel Clamp And Lens Easily Removed To Reach Switch Settings And ?Quick-Test? Mechanism.; Maximum Temperature Pointer Follows Indicating Pointer Upward And Remains At Hottest Reading To Track High Temperature Levels. Resets Easily With Magnetically CoupLED Knob On Face Of Lens; ?Quick-Test? Feature Enables Simple Testing Of Switch Actuation And Related ControlLED Transformer Functions By Moving Indicating Pointer Clockwise Through Switch Settings. The No-Stress, Spring-Loaded Clutch Prevents Damage To Internal Thermometer Components