Maintain the accuracy and extend the lifespan of your pH and ORP electrodes with this specialized storage solution. Formulated with a pH 4.00 buffer and 3M potassium chloride (KCl), it prevents the diffusion of filling solution ions, ensuring electrodes remain hydrated and responsive. Ideal for both combination and separate silver/silver chloride reference electrodes, this solution safeguards against sluggish performance and promotes rapid, reliable readings.