Contour Comparator

Compact and versatile, the contour comparator offers simple visual testing with a wide range of test options.

Easy and cost-effective testing
The contour comparator lines up the sample colour with the colour discs for an easy comparison, suitable for all users.

Established colorimetric methods
The contour comparator kit utilises the globally recognised DPD method to provide clear colour development.

Wide range of test parameters
The contour comparator has more than 40-disc options. Choose you disc options based on the tests you require. Add new test options at any point by purchasing additional discs and reagents. Download the full options below.

Single and dual parameter test kits
Discs are available in single and dual parameter, providing the option for two measurement ranges in one kit.

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To contact our team please fill out the enquiry form below. Please note we aim to respond to all enquiries within 2 working days.

Visual Testing

Colourimetric

Fast Results

Handheld Meter

Contour Comparator Reagents

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Contour Comparator Accessories

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Alkalinity

0 - 250 mg/L

Ammonia

0 - 1 mg/L

Chlorine

0 - 250 mg/L *low range option available

Copper

0 - 5 mg/L

Hydrogen Peroxide

0 - 100 mg/L

Iron

0 - 10 mg/L

Manganese

0 - 5 mg/L *low range option available

pH Phenol Red

6.8 - 8.4 *other pH ranges available

Phosphate

0 - 100 mg/L *low range option available

Sulfide

0 - 0.5 mg/L

View all parameters and ordering options

Technical Support

To find out more information and to contact our support team, visit our technical support page.

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Frequently Asked Questions

Read our FAQs for more information about your product and application.

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How do you use a Colour Matching Visual Test?

These use a disc or a chart with coloured panels, each labelled with a figure. Normally, tablet reagents are added to the sample and the colour that develops is matched to a panel on the chart or disc. View visual test methods here.

Test Strips also use the principle of colour matching. The reagents are already present on the test strip. You simply dip them in the sample and compare the colour to a chart on the container.

What is the shelf life of my comparator colour standard discs?

The discs used in our Contour Comparator kits are produced from fade-free acetate and inks. The colour acetate petal discs are designed to be accurate for 10 years, providing they are stored in a cool, dark place. Continuous exposure to intense UV light sources (such as daylight) may cause premature colour fading. The outer clear plastic casing can become blemished or stained if exposed to solvents, chemical reagents or abrasive surfaces and affect the result.

Which is best a Photometric or Visual Test Method?

The reasons for carrying out a test, the situation and the application all effect the choice of what test method is best for you.

For example, whilst accuracy and repeatability might be the most important factors in a modern laboratory. Weight, speed of test, and the lack of requirement for electricity might be more important in a field expedition.

Contour Comparator Specification

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Available to buy as...

Single Parameter Contour Comparator Kits

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Dual Parameter Contour Comparator Kits

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Kit options


Contour Comparator	Y	Y
Contour Disc with Instructions	1	2
Sample Tubes	3	3
Crush/Stirring Rods	Y	Y
Reagents	30 tests	60 tests (30 of each parameter)
Hard Case	Y	Y