... digital indicator 1.Size: 48*96*100mm,Universal input,Up to 3 alarm relays 2.Isolated ... Multi-function digital sensor indicator, size: 48*96*100mm * Universal input: TC, RTD, mA, mV, A(AA/DA), ... ~10mA or 4~20mA, configurable by software. * Transmitter power supply: DC 24V or DC12V / 30mA max. * ... CONTACT US! IBEST ELECTRICAL CO.,LTD Universal input , Up to 3 Alarms , IBEST AC Power Digital Indicator