What should I do if the pH strip colours don’t match between the bottle and the app?
There are currently two existing versions of our pH strips, each with different colour charts. To ensure an accurate reading, please select the correct pH strip tab in the app before comparing your results.
Fernox Refractometer

Simple test for antifreeze concentration Range Min Div./Accuracy Ethylene Glycol -50°C–0°C (0¾70%) ±5°C (5%) Propylene Glycol -50°C–0°C (0¾70%) ±5°C (5%)
Antifreeze Valves Installation
Warning: The following instructions must be read and understood before installing and maintaining the product. Warranty: Fernox covers the product for a warranty period of 5 years as long as it is used in the correct manner and under the terms indicated in the technical specifications listed. Preparation for installation: Ensure that the pipes are […]
How to locate my drafts folder?
If you’ve saved a test to finish later, you can find all your unsubmitted tests in the Drafts folder. Open the main dashboard of the app. Click the menu icon in the top-left corner. Select the relevant test type (Daignostic Water Test, Express Inhibitor Test etc.). Next to the “All” tab, you’ll see a “Drafts” […]
How can I give my App location access?
When first prompted tap Allow on the “App Would Like to Access Your Location” dialog. If you’ve already denied access follow these steps on your Android or iOS device: iOS Open Settings → Privacy & Security → Location Services Make sure that Location Services is on Scroll down to find the Fernox App Tap the app […]
How can I give my App camera access?
When first prompted tap Allow on the “App Would Like to Access the Camera” dialog. If you’ve already denied access follow these steps on your Android or iOS device: iOS Open Settings → Privacy & Security → Camera Enable camera access for the Fernox App Relaunch the app to confirm the change Read more: https://support.apple.com/en-gb/guide/iphone/iph168c4bbd5/ios […]
Does Fernox have a registered Data Protection Officer (DPO)?
Under the UK GDPR and EU GDPR, certain organisations are legally required to appoint a Data Protection Officer (DPO). This obligation applies when an organisation is (1) a public authority, (2) undertaking large-scale, regular, and systematic monitoring of individuals, or (3) processing large-scale special category data such as health, biometric, or genetic information. Fernox has […]



















