Endress Hausser CPM253-MR8105. Liquisys M CPM253 010: Sensor Input; Software: MR: Memosens, digital; pH(glass/ISFET) ORP basic version 020: Power Supply: 8: 24V AC/DC 030: Output: 1: 2x 0/4...20mA, primary value + secondary value 040: Additional Contact: 05: Not selected