Refrigerator Temperature Controller — direct replacement for WKF27R / WPF22G Why you need it: restores accurate, reliable temperature control in refrigerators and freezers that use the WKF27R or WPF22G style thermostat. Replaces the original unit without modification, preventing spoilage and improving refrigeration efficiency. Key benefits Direct substitute: Designed to fit and function as a dropin replacement for WKF27R and WPF22G thermostats, so installation is fast and straightforward. Reliable mechanical control: Bimetallic sensing and a mechanical temperature regulator adjust compressor cycles without programming or external electronics, reducing points of failure. Stable temperature performance: Calibrated settings help prevent temperature swings that can damage food or sensitive contents. Compact and lightweight: Small footprint and 78 g weight allow installation in tight spaces without added bulk. Durable construction: Metal components provide longlasting functionality in demanding cooling environments. Features and specifications Compatibility: Replacement for WKF27R / WPF22G models. Connection: Standard 2pin design for simple wiring. Voltage: AC 220V operation. Temperature setpoints: warm inlet +12.5°C, cool inlet +5°C, cold outlet +1.5°C. Size and weight: 11 x 11 x 24 mm; 78 g. Sensing technology: calibrated bimetallic element for mechanical temperature regulation. Operation: Mechanical — no external power or programming required beyond AC supply. How it solves problems Replaces failed or unreliable factory thermostats to restore correct cooling cycles. Prevents product loss by maintaining steady temperatures in fridge or freezer compartments. Eliminates dependence on electronic controllers for environments where simple mechanical control is preferred. Typical applications Household refrigerators and compact freezers that originally used a WKF27R or WPF22G thermostat and require an AC 220V 2pin replacement. Commercial or catering refrigeration units where a compact, robust mechanical thermostat is needed to preserve perishable goods. Laboratory or medical cold storage requiring predictable, mechanical temperature control without programming. Installation notes Designed as a direct replacement; match model and twopin wiring to existing connections. Ensure AC 220V supply compatibility before installation. No external control interface or software required — operates mechanically via the bimetallic sensor. This thermostat provides a straightforward, durable solution for restoring accurate temperature control in systems built for WKF27R / WPF22G style mechanical regulators.