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Product Details


5,999.00 6,254.00

Water TDS Tester (Manual Calibration)

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HI98301 is rugged and reliable pocket-sized testers that offer quick and accurate reading of TDS. 


HI98301 has manual calibration facility and it can measure TDS upto 1999 mg/L (ppm)

• Graphite electrodes

• ATC 

• Simple one point calibration

• Easy to use

• Economical



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 printing industry.


HI98301 can measure TDS upto 1999 ppm


These testers feature an amperometric graphite electrode that provides better repeatability in measurements since they do not oxidize. An amperometric measurement of EC/TDS is based on Ohm’s Law, I = V/R where R depends on the distance between two pins and their surface. Oxidation changes both the distance and surface which will affect accuracy. The DiST’s non-oxidizing graphite pins are able to provide an optimal surface for accurate, dependable results.


When calibration is necessary, simply submerge the electrode tip into calibration solution (1382 ppm) and adjust the trimmer on the side of the tester.



TDS Range : 1999 mg/L (ppm)

TDS Resolution : 1 mg/L (ppm)

TDS Accuracy : ±2% F.S.

TDS Calibration : manual, one point

EC/TDS Temperature Compensation : automatic, 0 to 50°C (32 to 122°F)

EC to TDS Conversion Factor : 0.5

Cell Type : amperometric graphite

EC/TDS Probe : HI 73301 amperometric graphite electrode

Battery Type/Life : 4 x 1.5V alkaline / approximately 200 hours of continuous use

Environment : 0 to 50°C (32 to 122°F); RH max 95%

Dimensions : 175 x 41 x 23 mm (6.9 x 1.6 x 0.9’’)

Weight : 95 g (3.4 oz.)

Ordering Information : HI 98301P (DiST®4) is supplied with protective cap, screwdriver, batteries and instructions



• 6 months

Additional information

Weight 1 kg


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