PoolWaterLAB Photometer V2.0
PoolWaterLAB Photometer V2.0
- Developed in Germany for the US market
- Free 30-day returns — view policy
- Orders are shipped within 24 hours with 2–3 days delivery. All items are stocked locally in warehouses across the USA for faster shipping. Free Shipping on All U.S. To find out the cost of worldwide shipping, simply add the items to your cart, enter your shipping details, and the cost will be automatically calculated.
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NOT FOR EVERYONE (PLEASE READ FIRST)
If you're looking for a simple, “marketing-style” pool tester with basic strips and minimal setup, this device is not for you. Our photometer is built for users who are ready to move with the times, embrace modern precision technology, and spend a little time learning how the device works. Once you understand the basics, the testing process becomes incredibly easy, fast, and consistently accurate.
A professional-grade photometer designed for precise pool and spa water analysis. Provides accurate, repeatable digital readings to support confident water chemistry decisions.
Why accurate testing matters (especially with CYA)
Most pool problems aren’t caused by “bad chlorine” — they’re caused by inaccurate testing.
When cyanuric acid (CYA) builds up, many test strips can still look “normal” even when your chlorine is far less effective than it appears. That’s why pools can turn cloudy or develop algae even though the strip says you’re “fine” — and why people often end up adding more chemicals than they actually need.
PoolWaterLAB uses photometric testing to deliver consistent digital readings, so you can make the right adjustments with confidence (instead of guessing by color).
Recommended guides:
Accurate
Accurate
ACCURATE - Level 1 (L1):The highest accuracy and repeatability performance level of a water testing device.
Under laboratory conditions, the instrument-/reagent- and user related tolerances can be up to +/- 10 % of the actual value. For the parameter "pH" a tolerance of up to +/- pH 0.10 applies.
How PoolWaterLAB works:
How PoolWaterLAB works:
- Collect a water sample and place it in the measuring chamber of the PoolWaterLAB photometer.
- Add the reagent to the water sample; the reagent will react with the target chemical compound in the water.
- PoolWaterLAB will measure the concentration of the chemical compound and display the result in ppm.
What Parameters Are Measured by PoolWaterLAB
What Parameters Are Measured by PoolWaterLAB
This page focuses on the typical cost per test when using the PoolWaterLAB® photometer, based on reagent consumption for different pool and spa water parameters.
The table below lists each measured parameter together with its measurement range, typical accuracy, reagent type, and estimated reagent cost per test.
For information about measurement principles and accuracy, see Accuracy & Technology. For explanations of what each parameter represents, see Measured Parameters.
| Parameter | Range ppm (mg/l) | Accuracy L1 | Cost Per Test | Reagent |
|---|---|---|---|---|
| Free Chlorine | 0.00 – 6.00 | ±10% | $0.26 | Tablet/Liquid |
| pH | 6.50 – 8.40 | ±0.10 | $0.26 | Tablet/Liquid |
| Alkalinity | 0 – 200 | ±10% | $0.28 | Tablet/Liquid |
| Calcium Hardness | 0 – 500 | ±10% | $0.68 | Liquid |
| Cyanuric Acid | 0 – 100 | ±10% | $0.32 | Tablet |
| Total Chlorine | 0.00 – 6.00 | ±10% | $0.26 | Tablet/Liquid |
| Phosphate (LR) | 0.00 – 4.00 | ±10% | $0.60 | Powder |
| Iron (LR) | 0.00 – 1.00 | ±10% | $0.51 | Tablet |
| Copper | 0.00 – 5.00 | ±10% | $0.70 | Tablet |
| Nitrate | 0 – 50 | ±10% | $2.40 | Powder |
| Urea | 0.10 – 2.50 | ±10% | $2.55 | Liquid |
| Active Oxygen | 0.00 – 20.0 | ±10% | $0.28 | Tablet |
| Aluminum | 0.00 – 0.30 | ±10% | $0.80 | Tablet |
| Ammonia | 0.00 – 1.20 | ±10% | $0.80 | Powder |
| Bromine | 0.00 – 13.0 | ±10% | $0.26 | Tablet/Liquid |
| Chloramines | 0.00 – 6.00 | ±10% | $0.93 | Tablet |
| Chlorine (HR) | 5 – 200 | ±10% | $0.40 | Powder |
| Chlorine Dioxide | 0.00 – 11.0 | ±10% | $0.26 | Tablet |
| Hydrogen Peroxide (LR) | 0.00 – 2.40 | ±10% | $0.40 | Tablet |
| Hydrogen Peroxide (HR) | 0 – 180 | ±10% | $0.40 | Tablet |
| Nitrite (LR) | 0.00 – 1.50 | ±10% | $0.50 | Powder |
| Ozone | 0.00 – 4.00 | ±10% | $0.52 | Tablet/Liquid |
| PHMB | 5 – 60 | ±10% | $0.40 | Tablet |
| Phosphate (HR) | 0 – 80 | ±10% | $0.80 | Powder |
| Potassium | 0.70 – 12.0 | ±10% | $0.80 | Tablet |
| Sulfate | 5 – 100 | ±10% | $0.52 | Powder |
| Total Hardness | 0 – 500 | ±10% | $0.70 | Liquid |
| Zinc | 0.00 – 1.00 | ±10% | $1.30 | Tablet |
Parameters that can be measured in salt water
Parameters that can be measured in salt water
| Parameter | Fresh water | Saltwater | Seawater |
|---|---|---|---|
| Active oxygen | ✔ | ✔ | |
| Alkalinity | ✔ | ✔ | ✔ |
| Bromine | ✔ | ✔ | |
| Chlorine | ✔ | ✔ | |
| Chlorine dioxide | ✔ | ✔ | |
| Cyanuric acid | ✔ | ✔ | |
| Total hardness | ✔ | ||
| Calcium hardness | ✔ | ✔ | |
| Ozone | ✔ | ✔ | |
| pH | ✔ | ✔ * | |
| Hydrogen peroxide | ✔ | ✔ |
* Special case pH measurement
Depending on the salt content of your sample, the measurement result must be corrected according to the following scheme:
1 molar = -0,21 pH
2 molar = -0,26 pH
3 molar = -0,29 pH
where: 1 mol salt (NaCl) = 5.8 % = 58.4 g/l
Pools with salt electrolysis are not affected.
In salt electrolysis, a maximum of 7 g/l salt is used, far less than 1 mol (58.4 g).
What is included in the kit?
What is included in the kit?
1 x PoolWaterLAB (Water Tester)
1 x Triple measurement cuvette (exchangeable)
1 x Light protection cap
3 x Plastic special stirring stick
1 x 10ml syringe
1 x Water Leveler
3 x AA batteries
1 x Digital user manual
1 x Blue bag
20 tablets DPD N 1 (free chlorine)
20 tablets Phenol Red (pH)
10 tablets DPD N 3 (combined / total chlorine)
10 tablets CYA test (cyanuric acid / stabilizer)
10 tablets Alkalinity-M (alkalinity / acid capacity)
LabCOM Software
LabCOM App
LabCOM Cloud Service
24 month warranty
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Not sure what to test first? Start with Free Chlorine, pH, and CYA
Start with the basics: Free Chlorine, pH, and CYA. If your CYA is high, your target free chlorine must be higher to keep the same sanitizing power.
Pool Chemistry Guides
-
Cyanuric Acid (CYA) in Pools: Safe Levels, Hidd...
Cyanuric Acid (CYA) protects chlorine from sunlight, but high CYA can make chlorine far less effective. Learn the ideal CYA range, warning signs of high levels, and how to test...
Cyanuric Acid (CYA) in Pools: Safe Levels, Hidd...
Cyanuric Acid (CYA) protects chlorine from sunlight, but high CYA can make chlorine far less effective. Learn the ideal CYA range, warning signs of high levels, and how to test...
-
Why 97% of Pool Chlorine Can Be Inactive (Free ...
High CYA can make chlorine far less effective—even when tests look normal. Learn the FC/CYA relationship, the 7.5% rule, and how to keep your pool truly sanitary.
Why 97% of Pool Chlorine Can Be Inactive (Free ...
High CYA can make chlorine far less effective—even when tests look normal. Learn the FC/CYA relationship, the 7.5% rule, and how to keep your pool truly sanitary.
-
Why Pool Test Strips Fail When Cyanuric Acid Is...
Test strips often look “fine” even when your pool isn’t truly sanitized—especially with high CYA. Learn why strips fail, what they miss, and how to test accurately.
Why Pool Test Strips Fail When Cyanuric Acid Is...
Test strips often look “fine” even when your pool isn’t truly sanitized—especially with high CYA. Learn why strips fail, what they miss, and how to test accurately.
-
The Only Reliable Way to Balance Cyanuric Acid ...
Balancing CYA and free chlorine is the key to clear, safe pool water. Follow a simple step-by-step method to set the right FC level based on your CYA.
The Only Reliable Way to Balance Cyanuric Acid ...
Balancing CYA and free chlorine is the key to clear, safe pool water. Follow a simple step-by-step method to set the right FC level based on your CYA.
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