Room temperature controller insert electromechanical for use in hot water and night storage heaters and air conditioning and conservatory applications, with bimetal sensor element and thermal feedback, switching difference 0.5K, control input for temperature reduction 4K via external switching input, temperature range +5°C to +30°C, insert for installation in switch box, with screw terminals, contact protection cover and construction protection cap, screw terminals, 10A 250V, switching contact changeover, made in GermanyRoom temperature controller insertFor switch range K55®BB, alpine whiteFor switch range K55®, alpine white/pure whiteFor switch range Klein SI®, alpine whiteFor switch range Klein SI® cream white