Ten (10) Pack Hanna Calibration Check Solution for HI9813-6 HM Digital PH-200 1 or 2 point with

1 or 2 point with 3 memorized buffer values (4

WH-HD200-C housing with OR-250 O-ring

and radiological substances for up to 150 gallons

The Milwaukee pH Calibration & Maintenance Kit bundles four essential lab-grade solutions: pH 4

Ten (10) Pack Hanna Calibration Check Solution for HI9813-6 HM Digital PH-200 1 or 2 point withHI50021 is a premium quality calibration check solution used exclusively for the HI9813 6 portable pH EC TDS Temp. meter. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of solutions have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI50021 is for 10 sachets containing 20 mL of