VOLTCRAFT's WQ-500 probe is a meter replacement part designed for accuracy in measuring oxidation-reduction potential. It features durability for long-term use, making it suitable for laboratory and field applications. As part of the WQ-500 meter accessories, it ensures reliable performance for water quality analysis. https://elecena.pl/product/28368244/voltcraft-wq-500-orp-electrode 2025-04-12 https://elecena.pl/product/28368244/voltcraft-wq-500-orp-electrode 2025-11-10