Withstands fouling The Rugged Dissolved Oxygen (RDO) optical DO sensor from In-Situ Inc. withstands fouling, high-sediment loads and rapid flow rates. Using an optical luminescence-based DO method, the abrasion-resistant sensor responds rapidly to changing levels, maintains a stable response even in hypoxic conditions, and operates with very low drift for long periods. The sensor offers open-architecture communication protocols, including Modbus over RS485, SDI-12 (version 1.3), or 4-20 mA signal outputs. It easily integrates into SCADA or PLC systems. 800/446-7488; www.in-situ.com.Single-point control SCADA systems for wastewater treatment equipment and processes from Aqua-Aerobic Systems provide a single point of control for plant-wide
