Featured Lake & Stream Monitoring Products
Aqua TROLL 600 Multiparameter Sonde
Flexible multiparameter sonde with smartphone interface. Suitable for all applications.
Level TROLL 500 Data Logger
Increased accuracy compared to non-vented units. Records water level, pressure, and temperature in sub-1 inch applications. Vented only.
smarTROLL Multiparameter Handheld
NEW! Use your iOS™ or Android™ mobile device to check 14 water quality parameters in seconds.
From ambient surface water quality monitoring to spot sampling, In-Situ tools help you get the job done faster and at lower cost. Use our water quality sensors to simplify compliance with state regulations. Easily connect our instruments to your existing remote monitoring system to get real-time data, react to changes faster and reduce time in the field.