Which Digital Water Tester?

Digital Water Testers (also called photometers) are a great way to measure various elements in water fast and accurately. Our range is reliable, does not need calibrating and has a manufacturers warranty of 2 years.

Looking for the right Digital Water Tester? Please see the table below to compare the different types and the parameters they can test.

Here are our options with a brief summary for each:

eXact iDip 570 Photometer Marine Starter Kit (salt water)1) The eXact iDip & iDip 570
Can test more than 30 different elements – the user can customise the iDip from a selection of over 30 tests (see list below). The iDip is operated through a specifically developed app on your smart phone or tablet (iPhone®, iPad®, and iPod Touch®, Android®). Test results can be downloaded from the app in real time with parameter information, data storage as well as date/time/location tracking  of the tests. The iDip comes with 4 tests pre-installed (pH, Free Chlorine, Combined Chlorine and Total Alkalinity). The app also includes clear instructions (including videos) on how to carry out the tests and is therefore very easy to use.

eXact Micro 20 Photometer Bluetooth Digital Water Tester2) Micro 20 Bluetooth range
Can test more than 30 different elements. All tests are pre-installed and the Micro 20 can be used on its own or be linked to a smart device via Bluetooth. Test results can be downloaded onto smart phone or tablet (iPhone®, iPad®, and iPod Touch®, Android®) in real time with parameter information, data storage as well as date/time/location tracking  of the tests.

eXact EZ Photometer Pool Advanced Kit3) eXact EZ Photometer Digital Water Tester
Each photometer in the range tests a set range of elements accurately and reliably. The test results are displayed on the photometer.

Compare the Photometers and the parameters they test in the table below:

New tests are always added to the photometers, so please check back from time to time or contact us for more details.


eXact® iDip®


eXact® iDip® 570 Aquarium & Pond


eXact® Micro 20 Bluetooth


eXact® EZ Photometer Well

eXact® EZ Photometer Chlorine+

eXact® EZ Photometer Pool

eXact® EZ Photometer Spa

Safe Swim Meter
to be operated via smart device (Apple or Android)to be operated via smart device (Apple or Android)with Bluetooth so it can connect to smart device but will also work on its ownworks standalone, results displayed on photometerworks standalone, results displayed on photometerworks standalone, results displayed on photometerworks standalone, results displayed on photometerworks standalone, results displayed on photometer
Parameter:eXact iDip 570 Photometer Marine Starter Kit (salt water)go to producteXact iDip 570 Photometer Marine Starter Kit (salt water)go to producteXact Micro 20 Photometer Bluetooth Digital Water Testergo to producteXact EZ Photometer Digital Water Tester Well (meter only)go to producteXact EZ Photometer Digital Water Tester Chlorine+ (meter only)go to producteXact EZ Photometer Pool Advanced Kitgo to producteXact EZ Photometer Spa (meter only)go to productSafe Swim photometergo to product
Active Oxygen (MPS)
Total Alkalinityyesyesyesyesyesyesyes
Aluminiumyes
Ammoniayesyes
Biguanide yes
Bromine (DPD-4)yesyesyesyesyes
Calcium Hardness
(as CaCO3)
yesyesyesyesyes
Chloride (as NaCl)yesyes (marine water only)yesyes
Chlorine Dioxide (DPD-1)yesyesyes
Chlorine, Free (DPD-1)yesyesyesyesyesyesyes
Chlorine, high rangeyesyesyes
Chlorine, Combined (DPD-3)yesyesyesyesyesyes
Chlorine, Total (DPD-4)yesyesyesyesyesyesyes
Chromium (IV) (as CaCO3)yesyes
Copper (Cu+2)yesyesyesyesyes
Cyanide
(as CaCO3)
yes
Cyanuric Acidyesyesyes
Fluoride
(as CaCO3)
yesyes
Hydrogen Peroxideyesyesyes
Hydrogen Peroxide, high rangeyes
Hydrogen Peroxide, low rangeyes
Total Hardness, high range (as CaCO3)yesyesyesyes
Total Hardness, low range (as CaCO3)yesyesyes
Iodineyes
Total Ironyesyesyesyes
Manganeseyesyes
Metals (+2)yesyes
Molybdateyesyes
Nitrate (as NO3)yesyesyesyes
Nitrite (as NO2)yesyesyes
Ozone (DPD-4)yesyesyesyes
Peracetic Acid, low (DPD-4)yesyesyes
Peracetic Acidyesyes
Permanganate (DPD-1)yesyesyes
pH, BTyes
pHyesyesyesyesyesyesyesyes
Acid pHyesyes
Alkali pHyesyes
PHMB (Polyhexamethylbiguanide)
Phosphateyesyesyesyes
Quaternary Ammoniayes
Sodium Bromide, Total (as NaBr)yes
Sulfate (as SO4)yesyes
Sulfide (as S2-)yesyes
Pool Water Refill Box
486211: Alkalinity (486641), pH II (486639-II), free Chlorine (486637), combined/total Chlorine (486638), Calcium Hardness (486629), Cyanuric Acid II (481652-II)486211: Alkalinity (486641), pH II (486639-II), free Chlorine (486637), combined/total Chlorine (486638), Calcium Hardness (486629), Cyanuric Acid II (481652-II)
Process Water Refill BoxpH II (486639-II), Free Chlorine (DPD-1) (486637), Total Chlorine (DPD-4) (486670), High Range Chlorine (486672), Middle Range Peroxide (486648), Glycine (484014)
Smart Brew Refill BoxHigh Range Total Hardness (486656), Calcium Hardness (486629), Total Alkalinity (486641), pH-II (486639-II), Chloride III (486757), Sulfate (486608)
Spa Water Refill BoxFree Chlorine (DPD-1) (486637), Bromine (DPD-1) (486636),  Combined/Total Chlorine (DPD-3)(486638), pH II (486639-II), Total Alkalinity (486641), Calcium Hardness (486629)Free Chlorine (DPD-1) (486637), Bromine (DPD-1) (486636),  Combined/Total Chlorine (DPD-3)(486638), pH II (486639-II), Total Alkalinity (486641), Calcium Hardness (486629)
Tap Water Refill BoxpH II (486639-II), Total Alkalinity (486641), High Range Total Hardness (486656), Free Chlorine (DPD-1) (486637), Total Chlorine (DPD-4) (486670), High Range Chlorine (486672), Metals (486604)
Well Water Water Refill BoxpH II (486639-II), Total Iron (486650), Nitrate (486655), Total Alkalinity (486641) & Total Hardness high range (486656)pH II (486639-II), Total Iron (486650), Nitrate (486655), Total Alkalinity (486641) & Total Hardness high range (486656)
Aquarium Refill Box (fresh water)pH II (486639-II), Nitrate (486655), Total Alkalinity (486641), Ammonia (486654), Total Hardness high range (486656) & Phosphate (486814)
Marine Refill Box (salt water)Total Alkalinity, Calcium Hardness, pH-BT (486657), High Range Total Hardness (486656), Nitrate (486655), Ammonia (486654) & Phosphate (486814)