In-Situ Aqua TROLL 500 flush mount well covers Durable: Reinforced buckets and rounded

Durable: Reinforced buckets and rounded bail

and cost-effectiveness makes SinkFast® a truly one-of-a-kind bailer

A separate temperature sensor at the tip reports its reading on an LCD built into the reel faceplate after a short stabilization period

pH/Temp electrode (1007 series) — for Pro10 and ProQuatro

Factory-defaulted units can be changed via an OTT logger or USB/SDI-12 adapter

In-Situ Aqua TROLL 500 flush mount well covers Durable: Reinforced buckets and roundedThe Aqua TROLL 500 is a fully customizable five port multiparameter sonde with capacity for four interchangeable sensors and an antifouling wiper. A smartphone interface delivers accurate data and enables simplified calibration, panoramic data view and report creation. Corrosion resistant titanium construction and a convenient LCD readout give you confidence in remote and long term deployments. Standard configuration includes the sonde plus: