Hanna 1382 PPM Calibration Solution - 20 mL Sachet

TDS and EC meters should be calibrated frequently (every 1-4 weeks, depending on use). Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use or use the single use sachets.

TDS and EC Calibration Solution is available in a variety of sizes ranging from single-use sachets to quart bottles. All calibration solutions we offer are made by either Hanna or General Hydroponics.

The 1382ppm Calibration Solution will work for the following TDS testers and meters:
Hanna Primo TDS Tester
Hanna pH/EC/TDS/Temp Waterproof Tester (HI98129)
Hanna EC/TDS/Temp Waterproof Tester (DiST5 / HI98311)

The 1382ppm solution uses the NaCl scale / 0.50 conversion factor.

Sold individually or by the box of 25.