Water Master pH 4.01 Calibration Liquid – Calibration Solution for pH Meters
Water Master pH 4.01 Calibration Liquid – Calibration Solution for pH Meters
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🧪 Calibration value: pH 4.01
📦 Formats: 20 ml sachet (box of 25 units, sold individually) and 300 ml bottle
⚖️ Compatible with most pH meters on the market
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Description
- 🎯 pH 4.01 Reference: Calibrate your meter at the acidic point of the scale quickly and easily.
- 📦 Two formats: Box of 25 20 ml sachets or 300 ml bottle, to choose from according to your use.
- 📈 Accurate readings: Keeps the pH meter working perfectly in every measurement.
- ⏳ Longer useful life: Periodic calibration extends the life of the equipment and prevents incorrect adjustments.
Water Master pH 4.01 calibration solution is essential before adjusting your nutrient solution.
Full description
Water Master pH 4.01 Calibration Solution
This calibration solution is used to keep your pH meter working perfectly, ensuring accurate readings and extending the life of the device. Calibrate your meter to the pH 4.01 reference value quickly and easily.
Available sizes
- pH 4.01 – box of 25 x 20 ml sachets (sold individually)
- pH 4.01 – 300 ml bottle
We recommend calibrating your pH meter periodically, especially before adjusting the nutrient solution for your crop.
Warranty
At GrowIndustry we only work with proven quality products and trusted brands.
Every item goes through a check before shipping to make sure it arrives in perfect condition and ready to use.
Your satisfaction is our priority.
How to use
1. Turn on your pH meter.
2. Immerse the electrode in the pH 4.01 calibration solution.
3. Wait for the reading to stabilize.
4. Adjust the meter until it reads 4.01, following the manufacturer's instructions.
5. Rinse the electrode with distilled water before reusing it.

Water Master pH 4.01 Calibration Liquid – Calibration Solution for pH Meters
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Frequently asked questions
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Sirve para mantener funcionando a la perfección tu medidor de pH, garantizando lecturas precisas y prolongando la vida útil del equipo. Con él calibras el aparato al valor de referencia pH 4.01 de forma sencilla y rápida.
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Puedes elegir entre la caja de 25 sobres de 20 ml, con venta por unidad, y el bote de 300 ml. Los sobres son más cómodos para llevar al cultivo y la botella sale a cuenta si calibras a menudo en un punto fijo.
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Recomendamos calibrarlo periódicamente, y sobre todo antes de ajustar la solución nutritiva de tu cultivo. Es el momento en el que una lectura desviada puede costarte más cara.
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Depende de cómo calibre tu equipo: el pH 4.01 cubre el punto ácido de la escala. Consulta las indicaciones de tu medidor, ya que muchos aparatos se ajustan usando dos valores de referencia distintos.
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No, esta solución es exclusivamente para medidores de pH. Para calibrar la conductividad necesitarás un patrón de EC, como el EC 1413.
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Puedes pagar de forma segura con tarjeta, Bizum o PayPal, y también fraccionar el pago con Klarna o ViaBill. Con stock, el pedido sale el mismo día laborable si lo haces antes de las 14:00 y llega de 1 a 3 días laborables después; en la ficha verás la fecha de entrega estimada. Además, cuentas con devolución fácil en 30 días.