Hanna HI70024P Salinity Calibration Sachets are perfect for any conductivity probe or pen. The single-use sachets are made of light-blocking foil that prevents oxidation, ensuring the solutions are as fresh as the day it was packaged. Each sachet is marked with a lot number that can be traced back to its original batch and is stable for up to 5 years in its packaging. 

Convenience of individual packaging

• Ideal for users that do not calibrate frequently

• Ideal for field use due to portability

• Every sachet is as fresh as the day it was packaged

• Light block packaging prevents oxidation from UV light that could alter the value

Each sachet marked with lot number and expiration date

• Hanna solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened sachet