Adwa AD203 EC Meter
Adwa AD203 EC Meter
The Adwa AD203 is a fast, reliable pocket EC meter for measuring the electrical conductivity and total dissolved solids (TDS) of your nutrient solution. It has an easy-to-read display and automatic temperature compensation.
- Measuring range: 0 to 1999 µS.
- Accuracy: ±2% full scale.
- Calibration: manual, one-point.
- Keypad: splash-proof.
How to use
To calibrate, dip the tip of the electrode into the calibration solution and adjust the value. Then dip it into your nutrient solution and read the value on the display.
Free in-store pickup in Machico — order online and your order is ready within 1 hour.
Free shipping on orders over €100 and up to 10 kg to mainland Portugal, Madeira and the Azores.
For orders over 10 kg (e.g. substrates, grow tents, lighting), shipping is always charged separately, whatever the order value — in that case we recommend free in-store pickup.
Otherwise, shipping is calculated at checkout based on weight and zone (Madeira, mainland Portugal or the Azores). We also ship to several European countries.
For online purchases you have 14 days from delivery to cancel your purchase without giving a reason. Sealed products that cannot be returned once opened for health or hygiene reasons, such as cosmetics and food, are excluded.
All products come with a 3-year legal guarantee.
To start a return, email geral@stonedcompany.pt.
Payments and security
Ensure secure transactions and peace of mind with our trusted payment methods. Your security is our priority, and we use advanced security measures to protect your personal information and sensitive data.
Do you need more information?
Get in touch with us.
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The Adwa AD203 is a fast, reliable pocket EC meter for measuring the electrical conductivity and total dissolved solids (TDS) of your nutrient solution. It has an easy-to-read display and automatic temperature compensation.
- Measuring range: 0 to 1999 µS.
- Accuracy: ±2% full scale.
- Calibration: manual, one-point.
- Keypad: splash-proof.
How to use
To calibrate, dip the tip of the electrode into the calibration solution and adjust the value. Then dip it into your nutrient solution and read the value on the display.
Free in-store pickup in Machico — order online and your order is ready within 1 hour.
Free shipping on orders over €100 and up to 10 kg to mainland Portugal, Madeira and the Azores.
For orders over 10 kg (e.g. substrates, grow tents, lighting), shipping is always charged separately, whatever the order value — in that case we recommend free in-store pickup.
Otherwise, shipping is calculated at checkout based on weight and zone (Madeira, mainland Portugal or the Azores). We also ship to several European countries.
For online purchases you have 14 days from delivery to cancel your purchase without giving a reason. Sealed products that cannot be returned once opened for health or hygiene reasons, such as cosmetics and food, are excluded.
All products come with a 3-year legal guarantee.
To start a return, email geral@stonedcompany.pt.
Payments and security
Ensure secure transactions and peace of mind with our trusted payment methods. Your security is our priority, and we use advanced security measures to protect your personal information and sensitive data.
Do you need more information?
Get in touch with us.
