The In-Situ Aqua Troll

The Aqua TROLL 500 and Aqua TROLL 600 five-port multi-parameter probes have capacity for four interlocking, wet-connectable sensors and an optional anti-fouling wiper. The Aqua TROLL 700 and Aqua TROLL 800 offer the same robustness and reliability in a seven-port platform. Select an Aqua TROLL 600 or 800 for internal logging capabilities, a powerful internal battery and micro SD card for backup data storage.