The pH Hydrotester provides a fast and accurate digital readout of pH in a solution. Keeping the pH in the right range is essential for healthy plants. Key benefits of the pH hydrotester pen are:

  • Measures pH and temperature of nutrient solution
  • Range: 0.0 - 14.0 pH, 1-80°C
  • Includes batteries, electrode storage solution, pH 7.0 buffer and translucent cap

Why should I check pH?

Without the correct pH, nutrients cannot be absorbed by a plant's roots. This leads to nutrient lockout, and deficiencies shown on the plant's leaves. The further the pH is out, the more unhealthy a plant will be. A pH pen is a quick and easy way to make sure your plants stay healthy. Read more in our article here. For a complete list of pH levels for different plants check our table here.

pH Hydrotester Pen Features

The major benefit of this pH pen is the fast and accurate readout. It literally takes 1 second to update and give your current pH reading. At Aqua Gardening, this is the pen we rely on the most - and we haven't had one returned unlike other cheaper units available. Other features include:

  • Water resistant
  • Hold function - press to hold the current reading on screen
  • Resolution to 0.1 pH
  • Automatic compensation for temperature
  • Auto-off in 5 minutes
  • Calibrate at 4.0, 7.0 or 10.0 pH
  • Battery Life - approx 2 years. Uses 3 x 1.5V batteries ("357A")
  • Weight 53.9g
  • Dimensions 15.3 x 3.2 x 1.8 cm

Made by HM: a trusted name in test and measurement.

(SKU: 125093)

SKU 125093
Barcode # 891144000175
Brand HM
Warranty Length 1 Year
Warranty Conditions Replacement Warranty
Shipping Weight 0.38 kg
Type Test and Measurement

Replacement Warranty - Store warranty, this product needs to be returned to Aqua Gardening for testing and replacement.

This calculator will show you the delivery charges for this product only.

Free Shipping Eligibility

  • Aqua Gardening offers free shipping on most orders above $100 that are not bulky and are sent to metro areas.  Once you place all the items you wish to buy in the cart, the combined shipping price will be shown in the cart, including Free Shipping if you are eligible. For full details please see our free shipping eligibility here.

Delivery Information

  • Back Order products - These are products we usually carry in stock but are temporary out of stock. These products will be back in stock within a few days. We can send you an email notification when they are back in stock if you click on the “Notify me when back in stock” link. See the full details here.
  • Special Order products - These are products that we do not regularly stock. These products will be ordered specially for you, or dispatched directly to you from our supplier. See the full details here.
  • Online Only products - These are products that are in stock in a different warehouse and can’t be picked up with the Click & Collect option. If you wish to collect these products from our Brisbane showroom, you can enter our address as the delivery address. Shipping costs may apply. See the full details here.
  • Click & Collect Only products - These products can only be collected from our Brisbane showroom as we can not ship them. If you place any of these products in your cart, you will only see the Click & Collect option at the checkout.
  • Fast Dispatch products - These are products that we have in stock in our Brisbane showroom, and they are available for immediate Click & Collect or Shipping. Keep in mind that if you have a product which is not listed as a Fast Dispatch product in your cart, there might be a delay on your order. See the full details here.