Description
Aqua TROLL 500 Multiparameter Sonde Dissolved Oxygen Size Voltage Operating amps Minimum EPA approved method LT NLB SS 30LB BULK Composite LED Configuration Component:Base Sonde Size Voltage Operating amps Minimum depth Display height x width Unit warranty 1 HP 120V 11 The middle reading also helps show whether usable fish habitat is being compressed into a narrowing band between water that is too warm near the surface and water that is oxygen poor below