Smartphone water analysis with JBL ProScan, 7-parameter test strips
Regular price
$37.00
Regular price
Sale price
$37.00
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/
per
You dip a test strip, place it on the card and your phone reads it. The app gives seven values for the water and tells you which ones to correct. The kit contains 24 strips, and the refill the same number.
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The summary
- What it measures: GH, KH, pH, nitrite, nitrate, chlorine and calculated CO2.
- Kit or refill: the kit contains the reading card, the refill contains 24 test strips only.
- How long it takes: 60 seconds for the reaction, then a few seconds for the scan.
- What you need: a recent smartphone with an autofocus camera.
Seven water parameters read and explained by your phone's camera
The JBL ProScan smartphone water analysis measures 7 parameters: GH, KH, pH, nitrite, nitrate, chlorine and calculated CO2. A dipped test strip, placed on the reading card, is scanned by the phone's camera after 60 seconds of reaction. The app rates each value as good, fair or poor and suggests a correction. The kit contains 24 test strips.
Reading a test strip by eye is always approximate, especially when two shades of pink look alike. Here, it is your phone's camera that compares the colours. You dip the strip in the water, tap it gently on absorbent paper, place it on the reading card, then the free app scans the whole thing after 60 seconds. It then displays seven parameters and rates them as good, fair or poor.
📱 What the app tells you
Each analysis gives the general hardness GH, the carbonate hardness KH, pH, nitrite, nitrate and chlorine. The app also calculates the dissolved carbon dioxide from the pH and KH, except in pond mode, where this value has no practical use. When a value falls outside the correct range, the app explains what it means and suggests a correction. Results are saved, so you can follow how your water changes week after week on a graph. As a guide, healthy water keeps nitrite below 0.1 mg/L, in an aquarium as in a pond, and the recommended pH for a pond is between 7.5 and 8.5.
🔁 Monitoring an aquaponic system
In aquaponics, consistency matters more than the accuracy of any single measurement. A test every 2 or 3 days during cycling, then every 2 weeks once the system is established, is enough to spot a deviation before it affects the fish or the plants. The kit therefore covers almost a year of routine monitoring, and the refill takes over with its 24 test strips. The history saved by the app also helps you on the day a problem appears: you can see when the nitrate level started to rise or the KH to fall, and link that change to a recent event, a new batch of fish or an increased ration. The guide to getting started with an aquaponic system details the testing schedule during cycling.
At start-up
Nitrite signals the cycling of the filter, and the history shows the peak and then its disappearance.
In routine use
Nitrate and KH show whether the fish load and the buffer reserve remain in balance.
After a refill
Measuring chlorine shows whether mains water can safely go into the tank.
In peak season
The pH and KH reveal water that is becoming depleted when the plants grow quickly.
Monitor the ammonium while the tank is cycling
While a tank is starting up, pair your scans with the ammonium NH4 drop test. The ammonium level rises from the very first days, before nitrite appears on the test strip. By reading the two results side by side, you can pinpoint the stage of your filter's cycling and the moment the fish can be introduced.
One strip, one measurement
Each test strip can only be used once. Scanning a strip that has already been read gives false values, because its colours keep changing in the air. Also keep the reading card away from light and never replace it with a printout: the app calibrates itself on its original colours.
🧪 Test strip or drop test
A test strip measures several parameters in a single dip, which makes it well suited to regular monitoring. Its accuracy is, however, lower than that of a drop test, which titrates a single value with a dedicated reagent. Reading by phone removes the main weakness of conventional strips, judging a shade of colour by eye under variable lighting: the reading card carries its own reference colours, and the app compares the strip with those colours rather than with your memory. You therefore gain consistency from one measurement to the next, which matters most when following a trend. When a worrying value appears, confirm it with a drop test before taking action, then go back to monitoring with the strips.
📷 Scanning successfully
Three habits make the difference between an accurate reading and a skewed one. After dipping, do not shake the strip like a thermometer: tap it gently on a cloth or paper towel to remove the excess water. Then place it on the card and wait the full 60 seconds for the reaction before scanning. Finally, take the photo in daylight, holding the phone so that it does not cast its shadow on the card, because a shadow darkens the colours that the app compares. To check a KH value that surprises you, the KH drop test gives the figure to the nearest degree.
Technical specifications
The measurements
- Parameters
- GH, KH, pH, NO2, NO3, chlorine
- Calculated value
- CO2, calculated from pH and KH
- Test strips
- 24 per kit or per refill
- Water tested
- Freshwater aquarium, pond, tapThis test is not suitable for seawater.
The phone
- Application
- Free, in 12 languages
- Device
- iOS 13 or Android 10, autofocus
To go further
- Ammonium
- NH4 drop test
- Precise KH
- KH drop test
Storage
- Test strips
- Tube tightly closed, kept dry
- Reading card
- Away from light
2 further specifications are available in the detailed view.
In the box
- 24 test strips
- 1 ProScan reading card, in the kit only
Parameters, contents, compatibility and instructions for use: manufacturer's documentation, recorded on 08/10/2026 and 11/10/2026.
Manufacturer and product safety
- Manufacturer
- JBL GmbH & Co. KG
- Postal address
- Dieselstraße 3, 67141 Neuhofen, Allemagne
- Contact
- info@jbl.de
- Website
- www.jbl.de
Information provided under Regulation (EU) 2023/988 on general product safety.
Kit or refill?
The same 24 test strips. What sets them apart is the reading card, needed with the first purchase and reusable afterwards.
Kit or refill?
Three answers, and the table highlights the box that suits you.
| Test strips | Reading card | Typical use | Price | |
|---|---|---|---|---|
| Recommended Kit with reading chartYour choice | 24 | Included | First purchase | $37.00 |
| Refill of 24 test stripsYour choice | 24 | The one from the kit, reused | Already fitted with the card | $27.00 |
Kit with reading chartRecommended
What is in the box
Test strips24
Reading cardIncluded
Typical useFirst purchase
Refill of 24 test strips
What is in the box
Test strips24
Reading cardThe one from the kit, reused
Typical useAlready fitted with the card
Content recorded on 08/10/2026 from the manufacturer's documentation.
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It is not a guaranteed delivery date: public holidays, peak periods, customs or a carrier delay can extend it. The exact amount, in your currency, is worked out in the cart once your address is entered.
Delivered to your home by Colissimo or Chronopost, as you choose during payment. The exact cost is shown in your basket, according to the total weight of your order. Once unsealed, this product can no longer be returned under the right of withdrawal (article L221-28, 5° of the French Consumer Code), for reasons of hygiene and health protection.
Frequently asked questions
8 questions
6 key questions, 8 in the detailed view
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