HI 98301 DiST®1 TDS Tester with 1 mg/L resolution and 0.5 TDS Factor Graphite electrodes ATC Simple one point calibration Easy to use Economical DiST’s are rugged and reliable pocket-sized testers that offer quick and accurate readings of conductivity or TDS. The DiST® family of testers is widely used for monitoring EC/TDS in drinking water, water conditioning, reverse osmosis, cooling towers, wastewater, laboratories, agriculture, aquaculture and aquariums, hydroponics and the ... Read More »