Bluelab pH 4.0 Calibration Solution - 250 mlBluelab pH 4. 0 Calibration Solution 250 ml Features of Bluelab pH 4. 0 Calibration Solution 250 ml Product Tagline pH 4. 0 calibration solutions a must in every grower's toolbox Technical Specification Type: A clean probe is an accurate probe Bluelab pH Pen Cleaning Instructions Bluelab pH & Soil pH Probe Cleaning Instructions Bluelab Soil pH Pen Cleaning Instructions pH 4. 0 calibration solution MSDS Product Warranty Period Details There is

For your convenience

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Additionally

Cautionary Note: *The Bluelab Sample Tube is not intended for use in a high-pressure system

Calibration is easy with one push button and Bluelab Calibration Solutions

Use the included storage cap with KCl to prolong the probe's lifespan

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Conducts pH

ergonomic design

IntelliGrow)

PPM 500 (TDS)

and temperature simultaneously — all three on screen at once