Cooling & Heating output. Memory retention, time delay for compressor protection. Auto operation incase of sensor error. Power switch. Temperature range -50°C to +99°C. 230VAC Standard. Other models with 12VDC, 24VDC, 110VAC on request. Panel cutout : 29 X 71 mm Screw terminals : Admit 1X 2.5 mm² wire. Spade terminals for compressors (For SZ – 7569 – P only). General appliances like deep freezers, display cabinet, pastry cabinet, steam bath systems and chillers.