pH 4.01 Calibration Solution – 20 ml Sachet

Calibration, cleaning and storage solutions are essential for using your meters correctly. Beyond correct use, the electrode also lasts longer and works more efficiently.

The 20 ml sachets (e.g. pH 4.01 calibration buffer) are single-use only. Sachets are sold individually: 1 unit = 1 sachet.

To calibrate, pour the sachet’s liquid into a cup (so you don’t spill and waste it). Open the sachet by cutting across the top.