Up to 24V for DC input With signal LEDs These are perfect for safely sensing for DC voltages up to 24V Isolation Voltage:more than 3000V Input Current:50MA(MAX) Operating Current:more than 1MA Output Maximum Current:50MA (when input voltage is within the range of 15?20MA) Operating Temperature:-55-101 Maximum Signal Frequency:80KHz High Voltage Testing Current Amplification Testing whether AC 220V is existed SCM outpput level is low,and driven module voltage is high Can be applied to inverter,which can invert output the input signal Output TTL level can be detected with the microcontroller.The power supply can be 3-5V,can also access PLC24V level Then the PLC input terminal of the PLC COM power supply 24V input termination of the SCM output level can be used to isolating,anti-interference and protect SCM some circuit when driving motor Size:3.7x3.5cm/1.46x1.38inch Note: Please allow 1-3mm error due to manual measurement.pls make sure you do not mind before you bid. Due to the difference between different monitors,the picture may not reflect the actual color of the item.Thank you! Package Includes: 1x Optocoupler Module