Probe Maintenance Kit Keeps Your Probe Running Right!
The Probe Maintenance Kit includes electrolyte solution and five o-rings for DO sensor, a small brush, five o-rings for multiparameter probe and a syringe with grease to lubricate the o-rings. For use with HANNA Multiparameter Water Quality Meters (Nos. 138636, 138637, 158778 and 158779).