Designed specifically for Aquaculture Systems, the YSI 5500D and AquaManager® Software integrate process control, alarming, and data management into one product. Simple enough to monitor one tank, powerful enough to manage a full scale farming operation from anywhere in the world. Simultaneously measure dissolved oxygen with optical technology in multiple tanks or ponds. Multi DO Aquaculture Monitor and control one or 2 channels. 110-230VAC, w/115VAC US Cord or 12VDC.