Ten (10) Pack Hanna Calibration Check Solution for HI9813-6 HM Digital PH-200 Chemical contaminants: VOC's

Chemical contaminants: VOC's

or preparing for an emergency

1 or 2 point with 3 memorized buffer values (4

and radiological substances for up to 150 gallons

Stainless Steel probe for easy cleaning

Ten (10) Pack Hanna Calibration Check Solution for HI9813-6 HM Digital PH-200 Chemical contaminants: VOC'sHI50021 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