... ), used the advanced technology, to be designed high quality and performance, isolated, high accuracy, universal use, to be aimed to ... mV DCetcPhotoelectrical isolation in input, power and output modular, with strong anti-interference ability.High accuracy: +-(0.2%FS+1 ... to 40-points recording( option)Maximum 24 points relay alarm output,(option).24VDC auxiliary power supply for sensors and transmitters ...