HANNA instruments` buffer solutions are prepared according to precise formulas and are standardized with a pH meter calibrated according to the NIST standards. The 20 mL sachets are single-dose whereas, for more demanding applica...
0.00 and 1.00 ppm standards (iron) for Hanna Checker HI721: Iron
Great for testing proper functionality of your Hanna Checker HI721 Checker.
High accuracy with 0.01 pH resolution
Two point fast and accurate calibration
Usable with virtually any electrode that shares the same connector
3000 hours of battery life
HI 1270 small diameter probe fitseasily into a ...
Reagent kit for 25 Chlorine tests Range: 0.00 to 2.50 mg/L
Direct probe connection
Automatic Temperature Compensation
The Primo series of testers provide a fast and dependable way to measure the total dissolved solids or conductivity in your water samples. It...