Aqua TROLL 400 Multiparameter Probe

All-in-one, economical probe with fixed sensors to measure DO, Conductivity, Temperature, Pressure, pH and ORP.

---

Aqua TROLL 500 Multiparameter Sonde

A fully customizable multiparameter sonde with interchangeable sensors and a smartphone interface that delivers accurate data and enables simplified calibration, panoramic data view, and report creation. Ideal for spot-checking and profiling applications when used with a Wireless TROLL Com or for long-term monitoring with VuLink.

---

Aqua TROLL 600 Multiparameter Sonde

A fully customizable multiparameter sonde with interchangeable sensors, long-lasting battery power, and a smartphone interface that delivers accurate data and enables simplified calibration, panoramic data view and report creation. Ideal for short-term and long-term deployment. Available in vented and non-vented options.