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Potassium Silicate = < 60%
Double-junction pH probe for accurate measurements
Pro Controller lockout can be activated with ‘normally open’ and ‘normally closed’ switches
Polycarbonate body
Bluetooth soil sensor that connects seamlessly to your smartphone for quick and easy plant analysis
Bluelab pH 7.0 Calibration Solution - 250 ml EU Meter Potassium Silicate = < 60%pH 7. 0 calibration solutions a must in every grower's toolbox Features: Contains 250 ml 8. 4 fl oz Boost your pH products longevity with regular cleaning and calibration
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