The new Paragon 9045-00 and 9145-00 Universal Defrost Timers are the only multi-voltage defrost timers engineered to refrigeration standards! Our new product is certified to UL873 standards for temperature-indicating and regulating equipment, as refrigeration controllers; switches rated to 30,000 cycles. Competitive offerings are certified to UL917 standards for safety for clock-operated switches with switches rated to 6,000 cycles. At 4 defrosts per day, the Paragon Universal Defrost Timer switches last 16 years longer! Proudly made in the USA - we offer a real time clock and 100 hours of power loss protection for both time and defrost schedule. To fit the application your customers need, we offer mechanism only models designed to fit in the standard Paragon enclosures.