The Hanna HI98193 Waterproof Dissolved Oxygen & BOD Meter is a rugged, portable device ideal for water quality testing in environmental, wastewater, and aquaculture applications. It features a polarographic DO probe with preformed PTFE membranes and automatic compensation for barometric pressure, temperature, and salinity. With measurement ranges up to 50 ppm and 600% saturation, this IP67-rated meter also calculates BOD, OUR, and SOUR. It includes GLP data logging, USB connectivity, and a backlit LCD for easy outdoor reading. Supplied in a durable carrying case with all accessories, the HI98193 ensures accuracy and convenience for professionals. Available in Pakistan at Kamadi.