Hanna HI7042S Electrolyte Fill Solution for Galvanic DO Probes (30 mL) eco-friendly A liner rod inside the

A liner rod inside the base section keeps soil out while driving

Durable construction: IP65 rating and protective housing for reliable performance in harsh conditions

and isobutylene calibration gas should be replaced before its expiry date to keep ppb-level readings accurate

Two things reduce it: the SR-305 solvent reclaimer

Three sensors at once

Hanna HI7042S Electrolyte Fill Solution for Galvanic DO Probes (30 mL) eco-friendly A liner rod inside theThe Hanna HI7042S is the electrolyte fill solution for galvanic dissolved oxygen probes, supplied in a 30 mL bottle. Fresh electrolyte is added whenever you replace the membrane cap to keep DO readings fast and accurate. Key features Formulated specifically for Hanna galvanic DO sensors Replenish during routine membrane cap replacement for stable, low drift oxygen readings Convenient 30 mL bottle Use with: Hanna galvanic DO probes including the HI9147