These new testers from Oakton Instruments feature a full 1-1/16"H display and dual readout of measuring parameter and temperature. Three-segment indicator provides instant status of battery life. Models available for almost any application: from pure water to reverse osmosis/drinking water to rinse tank. Unique cup-style sensor collects and holds sample or can be used for dip-and-read operation. All models are waterproof and designed to float.