Bi-Metal Measurement With Reset-Able Maximum Pointer; 5 Inch (130Mm) Dial Face; Up To 2 Fully Adjustable Switches (Contacts) For Control And Alarms (165/167 Has One Additional Fixed Switch); Control Motors Up To 3/4 Hp; Clear And Reliable Temperature Indication; 5 Inch (114.3 Mm) Dial Face For Clear Temperature Indication; Provides Accuracy Within ?2%; Dampened Element Provides Smooth Pointer Movement; The Lens Is Made Of Clear, Uv Stabilized, Molded Polycarbonate For Easy, Scratch-Resistant Viewing Throughout The Life Of The Unit; Rugged Cast-Aluminum Housing With Thermoset Powder Coat Finish For Survivability In Harsh Environments; SeaLED 165/167 Models Available For Submersible Applications Such As Vault Transformers; UnseaLED Models Feature Case Venting To Prevent Moisture From Accumulating Under The Lens And Keep The Dial Face Clear; Gasketed Lens With Bezel Forms A Leak-Tight Seal For Protecting The Internal Mechanism From The Environment