- All Steel Case and Cover Provides Long Lasting, Rugged Protection for Internal Components
- "Sight-Set" Calibrated Pressure Adjustment Displays a Visible Pressure Scale, Fully Adjustable Through the Range without Removing the Cover (On NEMA 1 Enclosure Models)
- Manual Reset Lockout Option Provides "Trip-Free" Lockout that Cannot be Overridden or Reset Until Pressure Returns to Specified Level