The TROLL® 9500 is the ultimate tool for profiling, surveying and monitoring. It features the most sensors in a 1.85" (47 mm) housing with 5 sensor ports plus temperature and barometric pressure sensors. The compact design allows for all of the standard parameters such as DO, conductivity, pH/ORP, temperature, turbidity, level or measure, and an additional ISE parameter like Nitrate, Chloride or Ammonium.
