Calibration Check Solution for HI9813-6 (25 x 20 mL Sachets) discounted CO2 and also provides an

CO2 and also provides an accurate VPD measurement

the Sunburst is sure to shine

- 24-hour data log of values

and the entire unit is easy to clean and carry

ELEMENTS® RED 1-1/4 size papers w/ magnetic closure

Calibration Check Solution for HI9813-6 (25 x 20 mL Sachets) discounted CO2 and also provides anHI50021P 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 HI50021P is for 25 sachets containing 20 mL