The Apera Instruments DO502 is a 30ml refill electrolyte solution specially formulated for use with the DO500 polarographic dissolved oxygen electrode.

This refill solution is essential for maintaining the accuracy and performance of your DO500 electrode. It ensures consistent dissolved oxygen readings in applications like aquaculture, environmental testing, and laboratory analysis.

Key Features:

✔ For DO500 Electrode – Specifically designed for compatibility
✔ Easy Refill – Replenish your DO electrode’s electrolyte as needed
✔ 30ml Bottle – Long-lasting and convenient volume
✔ Ensures Accurate Measurements – Maintains optimal electrode performance

Package Includes:

✔ 30ml DO502 Electrolyte Solution Bottle