Developed from practice and made in Germany. Our products are manufactured in an ISO 9001:2015 certified company.
Our practical experience has taught us the problems presented by water quality testing in regions with limited infrastructure. We have often found ourselves in the field or in the laboratory, dealing with unfavorable conditions and inappropriate equipment that caused more trouble than it was worth. As a result, we developed our own products, which are above all simple and practical.
LetzTEST Tube - Fecal Bacteria Presence / Absence
LetzTest Tubes are a presence/absence test to easily detect bacteria of fecal origin in drinking water. The test tubes have numerous advantages in their use in rural areas where a laboratory and qualified workforce resources might not be available.
Form: Dry test strip
Shelf life: 2 years
Languages: English, French, Spanish
Art. no. : 116498
LetzTEST Household Water Test Kit
The Household Water Test Kit is an educational presence /absence test kit, protected by patent office, which detects bacteria of fecal origin in drinking water. The Kit has numerous advantages in its use in rural areas and with respect to the objective of education and sustainable behavior change.
Art. no. : 113858 (english kit)
Art. no. : 118183 (french kit)
Art. no. : 118185 (spanish kit)
LetzTEST Membrane Filtration Kit
The Membrane Filtration Kit quantifies E.coli & other coliform bacteria in water samples - in the laboratory and in the field. LetzTest has developed a portable membrane filtration kit that is perfectly adapted to the requirements of a water testing laboratory in limited infrastructure conditions: robust, electricity-free, high in quality, easy to transport, easy to use, independent of inappropriate consumables. Furthermore, the same kit can be used to quantify other relevant bacteria in water such as enterococcus, pseudomonas aeruginosa, heterotrophic bacteria, total count and many more.
The Membrane Filtration Kit comes with a unique, re-writable practical handbook, which guides the tester through the entire testing procedure, from the moment of sampling to securing the data. The aim of this practical handbook is to ensure that the water quality testing data is correct in a setting where a robust quality management system might not yet be in place.
Art. no. : 115433 (english kit)
Art. no. : 118193 (french kit)
Art. no. : 118197 (spanish kit)
LetzTEST ELECTRICITY-FREE CHEMICAL Incubator 37°C (worldwide unique!!!)
Our patented, electricity-free incubator will revolutionize water quality testing in rural areas. LetzTest Tubes, Compact Dry Plates as well as Colilert Quanti-Trays fit perfectly into this unique incubator. Each Incubator comes with a robust temperature data logger.
Form: glass fiber aluminum insulated bag
Dimension: 340 x 280 x 90 mm
Weight: 2 kg
Content: See technical data sheet
Operating temp.: 37°C +/- 0,5 °C, 24 h
Capacity: 25 LetzTest Tubes or 30 Compact DRY Plates or 3 Quanti-Trays
Languages: English, French, Spanish
Art. no. : 115178
Our electrical incubators are specifically designed for areas of limited infrastructure and can be used in a laboratory and additionally in the fields.
Total weight – Inc cables & adaptor: 1.2 Kg
External case size: 27 x 21 x 10(H) cm
Chamber size: 11 x 13 x 7 (H) cm
Power supply – Adaptor: 100-240v AC @ 320 mA
Power supply – Incubator: 12 Volts DC @ 1Amp
Temperature control: MX Darlington switched solid state
Temperature range: 37 °C +/- 7°C (adjustable)
Total weight – Inc cables & adaptor 3.5 Kg
External case size- (footprint) 42 x 22 x 23(H) cm
Chamber size (useable) – 30 x 15 x 13 (H) cm
Power supply – Adaptor – 100-240v AC @ 360 mA
Power supply – Incubator 12 Volts DC @ 2 Amps
Temperature control – MX Darlington switched solid state
Temperature range – Ambient + 5 to 45°C +/- 0.5°C
MX10 Art. no. : 117955
MX45 Art. no. : 123500
LetzTEST Liquid Sampler
Use the practical LetzTest Liquid Sampler to collect water samples from points where the sample can not be taken directly into the sample bottle or bag ( e.g. at a storage tank).
Art. no. : 117952
Compact Dry Plates - E.coli and other coliforms
The usage of our Compact
Dry Plates is a simple and safe way for the determination and
quantification of E.coli and other coliform bacteria, or E.coli only in water
samples. As in some regions other coliforms are naturally present in the soil, the WHO suggests
to test only for E.coli, which is a definit indicator for a fecal contamination. We very
much suggest the use of these pre-prepared plates inn the fields and/or if a laboratory quality management system is not in place to assure correct
Ready-to-use: simply add 1mL of sterile water to activate the plate
Storage: 1-30°C (no fridge needed!)
Shelf life: 24 months
Max. 70 seconds „hands-on time“
Write sample ID on front part
Incubation: 24 hours at 35-38°C
E.coli and other coliforms, Art. no. : 115177
E.coli (only), Art. no. : 116379
NOTE: Additional plates for the determination of other types of bacteria (Pseudomonas Aeruginosa, Enterococcus, Total Counts and more) are available on demand.
Chromogenic Coliform Agar, CCA
Chromogenic selective agar to detect Escherichia coli and coliform bacteria from water with low accompanying flora (acc. to DIN EN ISO 9308-1). Pouring own petri dishes into reusable glass
petri dishes is very cost-efficient for water laboratories!
Storage: Dry, tightly closed, at 10...25 °C.Shelf life: 2 years
Art. no. : 114924
Filtration Membranes -
for LetzTest Membrane Filtration Kit
Cellulose nitrate membranes for microbiological analysis, grid print, diameter 47 mm, pore width 0.45 μm, individually and sterile packed.
100 pieces / pack
Art. no. : 114930
Thio Bags for Water Sampling - 100 ml
Designed for sampling and testing E.coli and other coliform bacteria in water that might contain residual chlorine. Each bag contains a nontoxic, nonnutritive tablet containing 10 mg of active sodium thiosulfate to neutralize chlorine at the moment of sampling.
100 pieces / pack
Art. no. : 114928
Bags for Water Sampling - 100 ml
For sampling unchlorinated water samples. Very easy and safe transportation compared to glass bottles that tend to break when the roads are in bad condition.
100 pieces / pack
Art. no. : 115407
Visual color comparator test -
chlorine and pH
The Pooltester is an easy to use tool for measuring free available chlorine, total chlorine and pH (acidity) of water samples. It is a
visual, color comparator test and uses reagent tablets, which color the sample water water according to the presence of chlorine or the pH. LetzTest especially recommends this kit to test for residual chlorine in areas of limited
Note: A small number of reagent
tablets are included with the unit but larger quantities should be requested separately.
Phenol Red - for pH
DPD1 - for free/residual chlorine
DPD3 - for total chlorine (used with DPD1)
Art. no. : 118311
Reagent tablets DPD1 - Free chlorine
Art. no. : 118312
Keep it simple and safe!
The easiest and most suitable way to measure turbidity in NTU under limited conditions.
Weight: 0.2 kg
Dimensions: 33 x 6 x 2.5 cm
Art. no. : 117402
eXact® Micro 20 Smart Photometer
Easy to use, Waterproof, robust, precise, fast, easy to calibrate, accurate and providing results for 44 parameters.
This very unique photometer can transmit the results to your smartphone by Bluetooth® and work in conjunction with the application eXact iDip® for iOS and Android to manage your testing data in a very easy and clear manner.
Results and automatically generated reports can be shared with responsible entities via e-mail and messenger apps.
Dual wavelength: 525 nm or 638 nm
Sample volume required: 4 mL
Battery life: > 2,000 tests
LED (Light Emitting Diode)
Meter with carrying case, acrylic calibration stick, cleaning brush, mixing cap, & instructions.
Art. no. : 115931
eXact® pH+ Multimeter Kit
Easy to use and robust. This unique multimeter measures pH, conductivity, salinity, total dissolved solids (TDS), temperature and the redox potential (different probe). Results can be transmitted to your connected device thanks to Bluetooth® technology. The portable kit works in conjunction with the application eXact iDip® for iOS and Android. Results and automatically generated reports can be shared with responsible entities via e-mail and messenger apps.
eXact® pH+ Smart Meter with carrying case
eXact® pH+ Multi Probe (pH, Conductivity, Salinity, TDS, Temperature)
Premixed pH calibration solutions (4.00 and 7.00)
Premixed Conductivity calibration solutions (12.88 mS/cm and 1413 μS/cm)
Soaking solution (3M KCl)
Calibration bottles (4)
Art. no. : 115945
How to get your LetzTEST Equipment?
>> Contact us
>> Receive an individual offer
>> Be supplied with high quality equipment at reasonable prices
>> Worldwide delivery !!!
Office in Germany
Berrenrather Str. 260
Tel.: +49 (0) 157 / 89 62 75 36
Office in France
14, rue Simonis
Tel.: +33 (0)7 68 / 22 37-47