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eXact Micro 20 Photometer Bluetooth Digital Water TestereXact® Micro 20 - Photometer for WatereXact® Micro 20 Bluetooth - Photometer for WatereXact Micro 20 Photometer Bluetooth Digital Water Tester

eXact Micro 20 Photometer Bluetooth Digital Water Tester

Price £579.99£499.99Save: 14% off


The eXact® Micro 20 is the ultimate Digital Water Quality Tester which tests accurately and reliably more than 30 elements/contaminants in water.

This handy device delivers fast and accurate results; and is surprisingly easy to use in 3 simple steps:

  1. Fill the compartment with a small amount of your water sample.
  2. Dip the test strip or fluid into it.
  3. Read the result on the display or in the app on the smart device.

To view the full instructions, please click here.

The eXact® Micro 20 is:

  • A great alternative to water testing strips for users who want accurate results (displayed in steps of either 1 or 0.01 - depending on contaminant), this includes tests for total alkalinity, free chlorine, total chlorine, copper, total hardness, nitrate, nitrite, pH, total iron, bromine
  • A cost-effective solution for regular water testing, with a warranty of 2 years
  • A testing device for contaminants which can not be tested with traditional strips, including fluoride, aluminium, ammonia, cyanide and manganese

For a complete range of potential testing parameters please see the table below. The price quoted includes the price for the unit, including 2 x free reagents for free and combined chlorine. Additional reagents can also be purchased on our website (prices and details in the table below). Please contact us to find out more or ask for other reagents which may not be available online.

Suitable for: any water samples, including fresh water (including drinking, tap, spring, well, stream, rain), pools & spas, ponds, aquariums (fresh and marine/salt water); food process water, environmental & educational testing (Please note, NOT suitable for cloudy water)

Ideal for: Field, On-site and Lab Use

Includes: 1 photometer Micro 20 with carry case, instructions, cleaning brush, plastic stirrer; plus 2 free reagents: Free Chlorine (DPD-1) (486637-25) 25 Tests and Combined Chlorine (DPD-3) (486638-25) 25 Tests, Mini Dilution Kit II (487202)

Please note, additional reagents are on our website, please also see table below.

Testing Range: between 1 and 0.01, please see table below

Warranty: 2 years

Wireless: requires Bluetooth 4.0 and Android 4.3 and up or Apple iOS 6.1 and up

Detailed Description:

The eXact® Micro 20 with Bluetooth SMART is a powerful dual wavelength (525 nm or 638 nm) photometer tests over 30 water quality parameters with lab-quality accuracy. It also connects wirelessly to your smart device to transfer test results. This makes it an ideal tool for everyone who needs to record water test results. Results will display simultaneously on the Micro 20 photometer and in the app.

It features a narrow band wavelength filter for improved accuracy; long-life LEDs and a built-in cell for ultra-performance. This high quality unit self calibrates (no need to return it to the manufacturer) and automatically selects the optimal wavelength for each parameter.

Incorporated into the testing procedure is a patented Reagent Delivery Method for streamlined testing for technical and NON-technical users. Compliance with EPA, ISO and DIN specifications for Chlorine testing attests to the meter’s quality. It comes with a 2-year warranty.

This is the preferred tool for digitally accurately and quickly testing water:

  • Pre–programmed to test over 30 water quality parameters with lab–quality accuracy
  • Fast, accurate results with EZ-3 Method
  • Test results can be shared in real–time via e–mail or exported to a CSV spreadsheetwith time–date GPS locations when used with the eXact iDip® app
  • Easy to use eXact® Strip/Photometer reagent delivery system (U.S. Patent #7,333,194) delivers reagents safely without the need to count drops or crush tablets.
  • Dual wavelength photometer the eXact®Micro 20 uses the same high quality 525nm and 638nm reagents as our other popular photometers for improved accuracy.
  • high precision reading
  • Built-in, permanent 4 ml cell for water samples (no glass or plastic cells; simply fill or dip into water)
  • Automatic countdown timer
  • 1080 test memory (saves last 20 tests per menu)
  • 3 simple steps: 1.Fill, 2.Dip and 3.Read
  • No-slip grip housing
  • Lightweight (only 170g/6oz with batteries installed)
  • Waterproof meter & floats
  • Easy-to-read LCD display
  • Auto Calibrated Meter
  • Environmentally friendly (recyclable parts & uses 60% less reagents than 10ml sample tests)
  • No colour matching
  • CE certification
  • 2 - year Warranty

The eXact Micro 20 Digital Water Tester can be used to test a wide range of water samples for:

Reagent Part No. Range Resolution No of Tests per Reagent
Total Alkalinity 486641 8-200ppm (pool), 9-210 (drinking) 2 100
Aluminium 486821 0.01 - 1.2ppm 0.01 50
Ammonia 486654 0.02 - 2.4ppm 0.01 25
Biguanide 486810 1.6 - 210ppm 1 50
Bromine (DPD-1) 486636 0.01 - 12ppm 0.1 100
Calcium Hardness (as CaCO3) 486629 16 - 400ppm 1 50
Chloride (as NaCl) 486757 1-330ppm 5 25
Chloride (as NaCl) high range 486757 26 - 6600ppm (with Mini Dilution Kit #487202) 8 25
Chlorine Dioxide (DPD-1) 486633 0.01 - 10ppm 5 100
Chlorine, Free (DPD-1) 486637 0.01 - 6.2ppm 0.01 100
Chlorine, high range, Free 486672 1 - 300ppm 1 100
Chlorine, Combined (DPD-3) 486638 0.01 - 6.2ppm   100
Chlorine, Total (DPD-4) 486670 0.01 - 6.2ppm 0.01 100
Chromium (IV) (as CaCO3) 486614 0.01 - 1.8ppm 0.01 50
Copper (Cu+2) 486632 0.01 - 11ppm 0.01, 0.1 50
Cyanide (as CaCO3) 486812 0.01 - 1.1ppm 0.01 50
Cyanuric Acid III 481652-III 1 - 110ppm 1 60
Fluoride (as CaCO3) 486643 0.04 - 1.5ppm 0.01 25
Hydrogen Peroxide 486648 0.3 - 100ppm 0.01 50
Total Hardness, high range (as CaCO3) 486656 60 - 600ppm 1 50
Total Hardness, low range (as CaCO3) 486630 1 - 80ppm   100
Manganese 486606 0.01 - 1.5ppm 0.01 24
Molybdate 486653 0.01 - 3ppm   50
Nitrate (as NO3) 486655 0.1 - 45ppm 0.01, 0.1 50
Nitrite (as NO2) 486623 0.01 - 1.8ppm 0.01 50
Ozone (DPD-4) 486634 0.1 - 2ppm 0.01 100
Peracetic Acid (DPD-4) 486674 0.01 - 6ppm   100
Permanganate (DPD-1) 486626 0.01 - 5ppm   100
pH 486639 pH 5.8 - 8.5 0.2 100
Acid pH 486624 pH 3.2 - 6 0.3 50
Alkali pH 486609 pH 7.2 - 9.8 0.3 50
Phosphate 486814 0.03 - 4.4ppm 0.01, 0.1 50
Quaternary Ammonia 486823 2 - 80ppm   100
Sulfate (as SO4) 486608 2 - 210ppm 10 50
Sulfide (as S2-) 486818 0.01 - 1.6ppm 0.01 50
Total Iron 486650 0.03 - 6ppm 0.01, 0.1 50

*please note, prices are approximates and may vary depending on shipping costs and general price changes. Bulk discounts are available.

Please check availability before ordering online as some reagents may not always be in stock.

Not sure which Digital Water Tester is the right one for you? Compare our range here.

Ref: 486700-BTK Stock Status: 3 Units in Stock Manufactured by: eXact Digital Tester

100% FREE Shipping

We ship orders daily Monday - Friday (except bank holidays) and offer the following options:

Orders to UK Mainland UK Address:

  • Order by 12 Noon for same day dispatch
  • FREE Super Saver 3-5 business days
  • EXPRESS 1-2 business days - only £0.99 for orders of less than £75 and £2.99 for orders of £75 or more

Orders to Europe*:

  • Order by 12 Noon for same day dispatch
  • FREE Shipping via Royal Mail International or courier

Orders to Rest of World:**

  • Order by 12 Noon for same day dispatch
  • FREE Shipping via Royal Mail International

We can ship worldwide - please contact us to obtain a quote for your destination.

Special next day delivery available - please contact us to book.


  • Higher value orders may be shipped using recorded delivery or courier at no extra cost to ensure safe arrival.
  • *Shipments to an European Address may take as long as 4-6 working days.
  • **Shipments to a Rest of World address can take 14 + days to arrive, also depending on the speed of customs.
  • All delivery times are estimates and depend on local courier services as well as processing times through Customs.
  • If the country that is receiving your order has strong regulations regarding the importation of goods including nutritional supplements, SimplexHealth cannot be held responsible for any additional fees incurred by Customs and/or Quarantine scanning. We also cannot accept responsibility for items returned by Customs.

Mainland UK includes: England, Scotland, Wales and all BFPO addresses.

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