A re-sealable bottle containing 500ml of electrode cleaning solution (HI-7160L). Using a cleaning solution to clean your electrode once a day or at least once a week - prevents clogging of the liquid junction and prolongs the life and the performance of your electrode.
Recommended reading:
* Care of your pH meter
Recommended for use with:
* Pocket Waterproof Conductivity, pH and TDS Tester (Low Range)
* Pocket Waterproof Conductivity, pH and TDS Tester (High Range)
* Compact & Waterproof pH Meter
* pHep4 Pocket pH & Temperature Meter
* pHep5 Pocket pH & Temperature Meter
* 'Champ' Pocket-sized pH Meter