1.ISO9001,CE,RoHS 2popular SOLAR SYSTEM TEMPERATURE CONTROL 3.PID, ON/OFF 4.Alarm, RS485/232 ... 1 PC AI-708 High Performance Temperature Controller-popular SOLAR SYSTEM TEMPERATURE CONTROL...Ideal for accurate controls of temperature, pressure, flow ... contact discrete output (NO or NC): 100 ~240VAC/0.2A (continuous), 2A (20mS instantaneous, repeat period≥5s)SSR Voltage output: 12VDC ...