Lishtot - water quality testing technology

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Lishtot is working on three types of devices:

The TestOnKey is the most compact device in Lishtot’s product family.


The TeStraw is a high level sensor with higher quality data, though testing times remain fast.

On pipe monitoring

Home-based devices will give around-the-clock water monitoring protection

Lishtot will analyze user data to derive a world water quality map for sharing with people, governments and utilities.


Lishtot is working on three types of solutions:
Mobile devices

Lishtot’s devices will give any person around the world the ability to test water before drinking.

Fixed devices

Lishtot’s fixed devices can solve many problems related to running water.

Industrial devices

There are many applications from the food and beverages industry for using our technology in production lines


Lishtot's technology answer the question "to drink or not to drink?" in less than 4 seconds

The Sensor works on the following principle: presence of contaminants, either general or in some embodiment’s specific bacteria or organic pesticides causes a differential electrical output in an electrical circuit. For example, clean tap water tested by Lishtot showed consistent outputs between +600 and +1000 Lishtot’s Safety Points; a similar water sample spiked with pathogenic E. coli at 1,000 cells per milliliter gave readings of 0 to -200 Lishtot Safety Points under similar testing conditions .
Lishtot technology has been successfully tested in and out of the lab several thousand experiments. The system has shown excellent reproducibility and the robustness required for testing under the most challenging conditions. As many who live in areas lacking dependable water resources boil their water, bacteria are not their major health concern. There are dozens of major pesticides used in Africa, China, India and in other countries and regions; while these specific chemicals will have to be tested for device calibration, preliminary results with several unique organic pesticides show that pesticides are easily detectable in otherwise clean water samples. Heavy metals such as mercury, cadmium and lead have been successfully identified at the ppb level with the same technology.



  • Speed

    Lishtot tests take between two and four seconds. Competing “fast” heavy metal tests generally require fifteen minutes, while typical plating protocols are eight to twenty-four hours.

  • Ease of Use

    Many Lishtot embodiments require no user input whatsoever, as the systems are automatic in sampling, testing, data collection, and results determination.

  • Low Cost

    Lishtot's technology is based on robust components that are inexpensive and readily available. There is no requirement for added reagents or special—and expensive—tracer molecules. Cost is pennies per test.

  • Contamination types

    Lishtot's technology detects heavy metals, pathogenic bacteria, and organic pesticides in water and is not affected by dirt or soil.

Our Team

Netanel Raisch
Netanel Raisch, Lishtot’s CEO and Co-founder is an experienced startup founder with marketing and development background
Alan Bauer
Dr. Alan Bauer, Lishtot’s CTO and Co-founder has been involved in diagnostics for 15 years.
Omer Granot
Programming team leader
I am programmer since i remember myself…
Nir bloch
Mechanical Development Manager
30 years experience isn’t enough?


Lishtot ("to drink" in Hebrew) has developed a technology for water testing that detects contamination in water in less than 4 seconds based on changes in water electronic characteristics.
Lishtot's mission is to connect through the Internet via a dedicated smartphone application many water testing devices in order to build worldwide and local water quality maps that provide the answer to any person in real time whether "to drink or not to drink?".
Lishtot's technology, based on 15 years of research, detects many contamination types (including bacteria, heavy metals and organic pesticides) and is reusable, requires no added reagents and costs cents per test.

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