What does cost per test mean?

Cost per test refers to the estimated reagent cost required to perform a single measurement of a specific parameter using the PoolWaterLAB photometer.

Why does the cost per test vary by parameter?

Different parameters require different reagents and quantities, which results in varying reagent costs per test.

Does cost per test include the device price?

No. Cost per test reflects reagent usage only and does not include the purchase price of the photometer or accessories.

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Name: PoolWaterLAB Photometer V2.0
Brand: PoolWaterLAB
SKU: POOLLAB2-WWW-D2JV
Price: 289.99 USD
Availability: InStock

PoolWaterLAB Digital Pool & Hot Tub Water Tester Photometer

Digital water tester for pools and hot tubs measuring pH, chlorine, and temperature – easy home water testing device demo

PoolWaterLAB photometer connected to mobile app for accurate pool water analysis

PoolWaterLAB photometer shown with printed instructions for proper water testing procedure

Pool Water Tester - Advanced Pool Photometer - Smart Pool Testing Kit

$350.00 $289.99

Shipping calculated at checkout.

Developed in Germany for the US market

Free return within 30 days

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. For now orders to Canada are shipped from Europe and all customs duties will be paid.

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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.

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.

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.

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

The following parameters can be tested in salty water

Parameter	Fresh water	Saltwater	Seawater
Active oxygen	✔	✔
Alkalinity	✔	✔	✔
Bromine	✔	✔
Chlorine	✔	✔
Chlorine dioxide	✔	✔
Cyanuric acid	✔	✔
Total hardness	✔
Calcium hardness	✔	✔
Ozone	✔	✔
pH	✔	✔ *
Hydrogen peroxide	✔	✔

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).

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

Works with liquid solid and powder reagents.

Reagents for Pool LAB - PoolWaterLAB - Water Tester -

Tablets Reagents

The reagent tablets have been distributed all over the world for several years. Advantages of tablets is a long shelf life, exact dosing and easy handling.

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Liquids Reagents

Some parameters can or must be measured with liquid reagents. With liquid reagents no crushing of tablet is needed. Shelf life of liquid reagents is 6 months

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Powder Pillows Reagents

For some tests, powder pillows are required. All powder pillows are produced, blistered and packaged in Germany.
Shelf life powder pillows reagents is 24 months

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PoolWaterLAB Photometer V2.0

* Special case pH measurement

Works with liquid solid and powder reagents.

Tablets Reagents

Liquids Reagents

Powder Pillows Reagents