... additional functionsrelay output2 groups switching 8A/AC250V(8A/DC 30V)switching input3 groups of external state input ... or dry contact mode)analog inputPT100,DC 0(4)~20mA,DC 0~10V general technical parameterstemperature and humidityWorking ... condensation, without corrosive gasaltitude≤4000minsulation resistance≥100MΩPower frequency withstand voltagePower supply, PV input, relay output, communication, ...