... , Wind Turbine Voltage, Wind Turbine Current,PV Voltage, PV Charge Current, PV Power, Battery VoltageWorking Temperature &Humidity-20~+50°C/35~85%RH( ... Without Condensation)Temperature Compensation(optional)4mV/°C/2V ,–35°C--+80°C, Precision: ±1°CCommunication Mode(optional)RS232,RS485,RJ45 ... specification are subject to change without prior notice. 2kW Vertical Axis Wind Turbine Controller