1. measuring instrument 2.PID, auto-tuning 3.Universal input 4.Heat/cooling ... ,RoHS,ISO9001 AI-509 Artificial Digital Industrial Process Temperature measuring instrument Ideal for accurate controls of temperature, pressure, flow, level, humidity ... Switch OutputTRIAC zero Crossing trigger outputSSR Voltage output: 12VDC/30mA (used to drive SSR)General specificationsVoltage: support AC85-265V,50/60Hz ...