The 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 meter's probe and the HI764103 / HI764080 digital DO probes. What's included: one 30 mL bottle of galvanic DO electrolyte.

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Estimated shipping weight: 0.3 lb.