Hanna pH 7.01 Calibration Solution, 20 ml, case of 25 spl_hrg To enter the setup mode

To enter the setup mode the user presses a button located in the battery compartment

Two-button Operation– One for ON/OFF

Impact-resistant

SUNMASTER 1000W SUPER HPS

Fluence Suspension Kit for RAY 22/44/66

Hanna pH 7.01 Calibration Solution, 20 ml, case of 25 spl_hrg To enter the setup modepH 7 is the most frequently used pH buffer. All Hanna solution bottles come with a pH vs. temperature chart together with the production lot # and expiration date to guarantee maximum accuracy. Formulation Hanna pH buffers are made of potassium dihydrogen phosphate and disodium hydrogen phosphate and are standardized with a pH meter calibrated to NIST primary standard buffer solutions (NIST 186Ie & 186IIe and NIST 158g S. R. M.).