The Aqua TROLL 800 is a fully customizable seven-port multiparameter sonde with capacity for six interchangeable sensors plus an antifouling wiper. It is ideal for short-term or long-term freshwater lake deployments.In addition to fast-response sensors, built-in error prevention, and mechanical antifouling, the Aqua TROLL 800 adds internal logging and runs on two alkaline D batteries for continuous deployment without external power. A micro SD card records backup logs to safeguard your data. Choose vented or non-vented construction, pressure or non-pressure measurement, and lake-management sensors for temperature, conductivity, pH/ORP, Rugged Dissolved Oxygen (RDO), turbidity, chlorophyll a, phycocyanin (BGA-PC), FDOM, chloride, and nitrate.Why it works Standalone logging. Internal logging plus micro SD backup runs unattended on two D batteries, no external power needed. Six sensors at once. Seven ports run six interchangeable smart sensors plus a wiper. 3D factory calibration. Multi-point factory calibration on every sensor for linear response across the full range. Low-maintenance deployment. Sub-3-inch mechanical antifouling and 9+ month battery life in fresh water. Mini calibration cup. Rinses and calibrates with just 100 mL of solution, roughly 5x cheaper than traditional methods. Built-in error protection. Spring-loaded screws, slip-clutch wiper, port-agnostic smart sensors, wet-mate connectors, and anti-roll bumpers.
