Hanna Pool Line Calibration Fluid pH 4.01 (20ml sachets)

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Hanna® pH 4.01 Calibration Fluid to calibrate your pH Meter

Individual sachets of 20ml each.

Reference: HI700044P

The pH meter should be calibrated for first time use and re-calibrated regularly, depending on how much it is used and how it is handled, stored and cleaned.

Always calibrate with both Calibration Fluids 4.01 and 7.01 for a correct setting of the pH range.  

We include a separate user manual with guidelines specifically for use in the float industry.

Tip: Always rinse the pH meter after use and store with Storage Fluid at room temperature. Store all Calibration Fluids at room temperature.