Greentest 2F

The Intelligent multimeter for nitrate detection


-Measures nitrates in 64 product types

-Measures nitrates in meat and fish products

-Fast and accurate results in 3 seconds

-Has 2 super thin probes that do not leave marks on food

-User-Friendly Interface

-Portable and USB rechargeable

-Comes in a nice packaging with a storage pouch

-Has touch screen and 20 languages to choose from

-Bluetooth connection with Apple and Android

-Long battery life, USB rechargeable lithium ion 720mAh battery can provide up to 20 hours of use time.


Technical specifications

- Nitrate measurement range: 0 – 9999 mg/kg

- Measurement margin of error: <10%

- Dimensions: 122 x 52 x 14mm

- Weight: 90g

- TFT Colour display resolution: 320 x 240

- Power source: 720mAh battery; Additional power source: USB to mains power charger, USB charge current: 310mA; Power voltage range: 5V

- Usage time: Up to 20 hours (using fully charged 720 mAh battery on the default device settings)

- Operating temperature: 0 – +60 °С.


Model Number: Greentest 2F

Brand Name: Greentest

Min. Order: 10 Pieces

Payment Terms: Telegraphic Transfer (TT,T/T)

Country of Origin:  Designed by Greentest in Europe; Assembled in China


Lead Time: 5-10 days

Dimensions per Unit: 15× 15 × 4.2 Centimeters

Weight per Unit:  85 Grams

Units per Export Carton: 10

Export Carton Dimensions L/W/H: 18 × 17 × 45 Centimeters

Export Carton Weight: 3.3 Kilograms

digital nitrate tester | Greentest 2F | Greentest

Digital nitrate tester, Greentest 2F, can test fruits, vegetables, meats, and seafood for the excess amount of nitrates, protecting the health of your family, the children, and elders.

Digital Nitrate Tester: Guide to Buying One

Water contains many contaminants that can harm the human body, and nitrate is one of them. Nitrate testing is a common analytical technique used to measure the concentration of nitrate ions (NO3-) in a sample. This can be done through a variety of methods, including colorimetric tests, ion chromatography, and spectrophotometry. Nitrate testing plays a significant role in various fields, such as environmental science, agriculture, and water treatment, as excessive nitrate concentrations can have harmful effects on the environment and human health. The specific method used for nitrate testing depends on the sample type and the level of accuracy required. In this article, let us give you a full guide to digital nitrate testers.

What is a digital nitrate tester?

A digital nitrate tester is a tool used to determine the nitrate concentration in water, normally found in fish tanks or hydroponic systems. Nitrates are necessary for plants to grow, yet in elevated quantities, they can become hazardous to water-dwelling life. Keeping track of nitrate levels is important to maintain a viable aquatic environment. It operates by utilizing an electrochemical detector to identify the nitrate ions in the sample and transform the signal into a digital display of the nitrate concentration. Electronic nitrate testers are often employed for water quality testing for purposes such as farming, environmental surveillance, and fish farming.

These electronic nitrate testers are usually small, portable, and simple to use, making them a favored option for amateurs and professionals alike. They provide fast and precise outcomes, letting swift modifications be made if nitrate levels get too high. With the capacity to observe nitrate levels in real-time, digital nitrate testers are a significant part of maintaining a healthy aquatic ecosystem.

How to use a digital nitrate tester?

If you own a digital nitrate tester but don't know how to use it, then here's how to use one:

1)Prepare the water sample: Collect a water sample from your aquarium in a clean container. Make sure the water is at the same temperature as the aquarium water.

2)Turn on the tester: Press the On button to turn on the digital nitrate tester.

3)Calibrate the tester: Some digital nitrate testers require calibration before use. If your device requires calibration, follow the manufacturer's instructions to do so.

4)Immerse the sensor: Immerse the sensor of the tester into the water sample. Make sure the sensor is fully submerged and avoid touching the bottom of the container.

5)Wait for the reading: The tester will display the nitrate levels in parts per million (ppm) after a few seconds.

Note: To get accurate readings, it's crucial to use the tester properly. It would be best if you follow the instructions on the packaging.

What are the test methods of using a digital nitrate tester?

There are several test methods for using a digital nitrate tester, including:

Dip method: The dip method involves immersing the nitrate tester's sensor into a water sample and waiting for the device to display the nitrate concentration.

Flow-through method: In this method, the water sample is pumped through the nitrate tester's sensor, and the device displays the nitrate concentration in real time.

Sample and test strip method: This method involves collecting a water sample and then testing it using a test strip that changes color in the presence of nitrate ions. The color change is then compared to a color chart to determine the nitrate concentration.

Photometric method: This method involves adding a reagent to the water sample that reacts with nitrate ions and produces a color change. The color change is then measured using a photometer, which calculates the nitrate concentration based on the intensity of the color.

Calibration Method: Before using a digital nitrate tester, it is essential to calibrate the device to ensure accurate readings. The calibration method involves preparing a solution of known nitrate concentration and using the nitrate tester to measure the concentration level. The device is then adjusted to match the known concentration, and the test can be carried out.

What should we pay attention to?

Before purchasing a digital nitrate tester, there are a few points to look into to make sure you pick the best item for your requirements. The following are some of the points to consider when buying a digital nitrate tester:

Measurement Range: The measurement range of a digital nitrate tester is one of the key elements to take into account. The range describes the maximum and minimum nitrate levels that the tool can measure. If the scope is too limited, you might not be able to test samples that fall outside the range. Conversely, the device may not provide precise results if the range is too broad. Thus, it is vital to go with a tester that can measure nitrate levels within your desired range.

Accuracy: The exactness of the nitrate tester is additionally significant. The accuracy level demonstrates how close the estimated worth is to the real worth. It is basic to pick a tester with high accuracy to guarantee exact estimations. An off-base tester can bring about bogus outcomes, which can be exorbitant and may prompt off-base basic leadership.

Calibration: Most digital nitrate testers require calibration to ensure accurate readings. Some testers require frequent calibration, while others need calibration only once in a while. It is important to check whether the tester requires alignment and whether it is simple to do. A nitrate analyzer that requires successive alignment may not be perfect for fieldwork where time is restricted.

Sensor Type: Nitrate testers employ a variety of sensors, including ion-selective electrodes and optical sensors. The type of sensor used is determined by the nature of the sample being tested. Some sensors are more accurate than others, and some are better suited to particular sample types. As a result, it is critical to select a nitrate tester with the best sensor type for your needs.

Ease of Use: A user-friendly and simple-to-use nitrate tester is ideal. The tester should have a simple, easy-to-use interface and clear instructions on how to use it. Some nitrate testers come with additional features, such as automatic shut-off, backlight display, and low battery indicators. These features can make the tester more convenient to use.

Battery Life: A digital nitrate tester's battery life is an important consideration. To ensure that your tester will last throughout your fieldwork, choose one with a long battery life. Some nitrate testers have rechargeable batteries, while others need to be replaced. It is critical to select a tester that is suitable for your requirements.

Price: The cost of a digital nitrate tester varies according to its features, accuracy, and measurement range. It is critical to select a tester that is within your budget. It is important to note, however, that the cheapest tester is not always the best option. It is preferable to invest in a high-quality nitrate tester that is accurate, dependable, and long-lasting.

Maintenance: Lastly, it is critical to make sure to keep the maintenance of the tester. To avoid damage to the sensors or other components, the tester may need to be cleaned and stored. Some testers include a storage case or cleaning solution to make maintenance easier.

Benefits of using a digital nitrate tester

A nitrate tester is a device used to measure the concentration of nitrate ions in water. It can be beneficial to use a nitrate tester for several reasons:

Prevents contamination: Nitrate can contaminate water sources and cause pollution. A digital nitrate tester can help identify the source of contamination and prevent it from spreading further.

Protects health: High levels of nitrate in drinking water can be harmful to human health, especially for infants, pregnant women, and people with certain medical conditions. A nitrate tester can ensure that the nitrate levels in water are safe for consumption.

Promotes environmental sustainability: Nitrate can have a negative impact on aquatic life and ecosystems. By monitoring nitrate levels with a nitrate tester, it's possible to detect changes in water quality and take corrective actions to prevent damage to the environment.

Improves Crop Yield: Nitrate testers can be used to monitor the concentration of nitrates in soil. This information can help farmers determine the optimal amount of fertilizer to use, which can lead to better crop yield and reduce the risk of over-fertilization.

Saves time and money: Using a nitrate tester can be a cost-effective way to monitor nitrate levels, as it eliminates the need for sending samples to a lab for analysis. It also provides near-instant results, which can save time and help take prompt action if nitrate levels are too high.

Measuring nitrate in your water is important to keep your drinking water safe. A digital nitrate tester can help you to monitor and manage nitrate levels in water sources, promoting environmental sustainability, protecting human health, and improving agricultural productivity. Greentest is one of the most reliable and trustworthy digital nitrate tester sellers. We offer a wide range of the best digital nitrate testers for residential uses as well as commercial uses at a very prudent price.


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Greentest 2F
Various Detectable Objects
The Greentest devices have the database that contains the most common fruit and vegetables, as well as fish and meat products. It is calibrated based on over 1000 studies of leading laboratories using professional spectrometric equipment.
Greentest 2F
Protect You From Nitrates
Nitrates are subsequently accumulated in the food product during production especially when mineral fertilizers are excessively used. Nitrates will eventually be converted into nitrites in the human body which occurs harmful and potential danger to health.
Greentest 2F
Who Need Nitrate Tester?
People who want to take better care of themselves and their loved ones.
People who pay attention to their food intake.
People who understand the problems associated with modern agricultural practices.
People who look for a caring gift for their loves.
Greentest 2F
Certified and Precise
The accuracy of the detection and the precision of the Greentest devices is ensured by the world’s leading laboratory test results. Permissible error is less than 10%.
Why Knowing The Nitrate It Is Important to us?
Nitrate intake can affect the body’s ability to transport oxygen, potentially leading to health issues such as methemoglobinemia. Excessive nitrate intake can contribute to the formation of harmful compounds in the body, and may increase the risk of certain types of cancer. By monitoring nitrate levels in our food, we can make informed decisions about our diet and take steps to mitigate any potential health risks.
What Are The Usage Scenarios for Greentest-1F Food Nitrate Tester?
Some usage scenarios include testing fruits and vegetables in the grocery store to make sure they are safe to eat, testing before feeding food to infants or young children, testing home-grown produce to ensure that it is free from harmful levels of nitrate.
The device can be used by farmers and food producers to monitor the nitrate levels in their crops and ensure that they are meeting safety standards. Additionally, food nitrate tester can be useful for individuals with specific dietary needs, such as athletes or people with high blood pressure, who may need to limit their nitrate intake.
Easy To Use
Modern design with the intuitive interface and touch control. Portable size and weight. Quick and accurate analysis. All make the device enjoyable and convenient for daily use.
Greentest 2F
Multiple options are available and ready to ship.
Feel free to contact us according to your customized.

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Results are determined by parameters including but not limited to the concentrations of salts in the intracellular space, conductivity, cell membrane state, etc of the tested objects.