... T1_min adjustable ,50°C by default T1_max adjustable, 90°C by default T1-T2_ON adjustable, 15°C by default T1- ... format Settings can be reserved after power break Temperature display °C / °FSpecifications Power supply: 230VAC (120VAC optional) Inputs: ... proportional pump control ,max 1800watts Ambient temperature: 0 °C [+32 °F] ~ +45 °C [+113 °F] Operating RH: 0~95% (non condensing). Dimensions: ...