The ProfiLine multiparameter handhelds for all conventional sensors are up-to-date systems for mobile measurement of pH / mV / ISE, conductivity and dissolved oxygen. They are handy and easy to operate all-rounders for many applications and have the CMC function for monitoring the optimum measuring range. A wide selection of WTW pH, conductivity and dissolved oxygen sensors covers almost any application. - Robust. - Easy to operate, with backlit graphic display. - A special silicone keypad allows perfect operation even with gloves. Multi 3320: For measuring pH, ORP, ISE, conductivity and dissolved oxygen (electro chemical). Ideal meter for environmental applications when testing ground and surface water, in aquaculture, waste water treatment etc. - 2 inputs for simultaneous measurement of pH and conductivity or pH and dissolved oxygen. The ProfiLine multiparameter handhelds for all conventional sensors are up-to-date systems for mobile measurement of pH / mV / ISE, conductivity and dissolved oxygen. They are handy and easy to operate all-rounders for many applications and have the CMC function for monitoring the optimum measuring range. A wide selection of WTW pH, conductivity and dissolved oxygen sensors covers almost any application. - Robust. - Easy to operate, with backlit graphic display. - A special silicone keypad allows perfect operation even with gloves. Multi 3320: For measuring pH, ORP, ISE, conductivity and dissolved oxygen (electro chemical). Ideal meter for environmental applications when testing ground and surface water, in aquaculture, waste water treatment etc. - 2 inputs for simultaneous measurement of pH and conductivity or pH and dissolved oxygen.