3 Best TDS Meter for water testing in India 2024 - Reviews & Best Price

TDS stands for Total Dissolved Solids, measuring dissolved metals and substances in your home's water supply. It includes organic and inorganic minerals like calcium, magnesium, chlorides, etc. Although a lesser amount of these solids does not negatively affect your health, a higher concentration of materials is not suitable for drinking.

According to the Bureau of Indian Standards, a TDS above 500 PPM (parts per million) is considered unhealthy and inadequate for drinking. At the same time, the WHO (World Health Organization) recommends a TDS of less than 300 PPM.

A TDS meter is a compact device that can check the total dissolved solids in your water within seconds. It can come in handy to ensure your water is safe for drinking or confirm whether your RO is working correctly.

How does a TDS meter work?

Dissolved solids, minerals, and salts can increase the conductivity of water and other solutions. A TDS meter can determine a solution’s conductivity by passing some electricity through it. A higher conductivity results in higher readings of TDS.

Things to consider when buying the best TDS meter for water testing in India:

Accuracy : It’s essential to look for an accurate TDS meter for determining the containments in drinking water. Most brands offer an accuracy range of ± 2% in their TDS meters.

Range : A higher measurement range of 0-9990 PPM allows you to use your TDS meter for Aquariums, pools, and more.

Ease of Use : Some convenient features like auto shut-off, hold function, and a large display make using the TDS meter easier.

Most TDS meters in the market have a similar design, but some meters are more reliable than others. We’ve compared and listed some of the best TDS meters for home use to help you find an ideal product.

What are the 3 best TDS meters for water testing in India ?

1. HM Digital TDS-3 Meter
   
2. Konvio Neer Imported TDS Meter
   
3. Themisto TH-TDS10 Digital TDS Meter
   

#1. HM Digital TDS-3 Meter

HM Digital is a global brand that has been manufacturing water quality testing instruments for over 30 years. This device by HM Digital is one of the best TDS meters for aquariums and many other purposes, as it comes with a built-in thermometer.

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Key features of HM Digital TDS-3 Meter:

1. A TDS measurement range of up to 9990 PPM ensures wider applications.
2. The built-in thermometer has a temperature capacity of 0-80°C.
3. It also includes a vinyl carrying case that protects the meter from any damage and makes it easier for you to store it.
4. Determines the TDS level with a high accuracy of ±2% and offers a temperature accuracy of ±1%.
5. It uses an advanced microprocessor and temperature compensation sensors to ensure fast and accurate results.
6. Equipped with a hold and auto-shut-off function.
7. An extended warranty of 3 years.

Pros of HM Digital TDS-3 Meter:

1. Display the water temperature as well
2. A carrying case
3. Excellent accuracy and measurement range
4. 3-year warranty

Cons of HM Digital TDS-3 Meter:

1. A bit expensive compared to other TDS meters

#2. Konvio Neer Imported TDS Meter

Konvio Neer’s imported TDS meter is one of the best-selling and most reliable TDS meters in the market. The company also offers a free virtual demo and a six-month warranty to ensure customers' satisfaction with their products.

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Key features of Konvio Neer Imported TDS Meter:

1. The TDS meter uses an intelligent chip that detects the dissolved solids in water within a few seconds.
2. It has a large digital display that makes it easier to understand the readings.
3. An auto shut-off function turns off the TDS meter after ten minutes of non-usage.
4. Measurement range of 0-999 PPM.
5. The titanium alloy probes ensure highly accurate results.
6. A hold button is also provided that locks the reading on display.
7. An automatic temperature compensation feature helps to reduce the chances of error at different temperatures.

Pros of Konvio Neer Imported TDS Meter:

1. Affordable and reliable
2. Compact design
3. Fast operation with intelligent chip

Cons of Konvio Neer Imported TDS Meter:

1. No carrying case is provided

#3. Themisto TH-TDS10 Digital TDS Meter

This TDS meter by Themisto is another highly accurate and durable product that helps you check your water quality at an affordable price. It’s an easy-to-use device ideal for testing drinking water, swimming pools, aquariums, and much more.

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Key features of Themisto TH-TDS10 Digital TDS Meter:

1. Measurement Range: Themisto’s TDS meter is capable of measuring dissolved solids within a range of 0-999 PPM.
2. Accuracy: It comes with a titanium alloy probe that helps this TDS meter to deliver a high accuracy of ±2%.
3. Display: Features a large digital display that helps you easily read the TDS measurement.
4. Auto-off Function: Prevents the TDS meter from delivering inaccurate readings at different temperatures.
5. Usage: Ideal for testing total dissolved solids in drinking water, aquariums, swimming pools, hydroponics, and more.
6. Hold Function: You can lock the TDS readings on the display by pressing the hold button, which makes it easier to save the reading

Pros of Themisto TH-TDS10 Digital TDS Meter:

1. Very affordable
2. High accuracy of ±2%
3. Great built quality

Cons of Themisto TH-TDS10 Digital TDS Meter:

1. No warranty

Comparison chart (HM Digital TDS-3 Meter Vs Konvio Neer Imported TDS Meter Vs Themisto TH-TDS10 Digital TDS Meter) :

Sl. No.	Description	HM Digital TDS-3 Meter	Konvio Neer Imported TDS Meter	Themisto TH-TDS10 Digital TDS Meter
1	Measurement Range	0-9990 PPM	0-999 PPM	0-999 PPM
2	Accuracy	Very High	High	Very High
3	Built-in Thermometer	Yes	No	No
4	Hold function	Yes	Yes	Yes
5	Auto Shut-off	Yes	Yes	Yes
6	Warranty	3 years	6 months	No warranty
7	In the package	Vinyl Carry case	NA	NA

Conclusion:

Access to safe and clean drinking water is necessary to maintain a healthy lifestyle. Unfortunately, tap water may contain high concentrations of toxic containments and other metals. A TDS meter helps to detect these dissolved solids with great accuracy in a few seconds. The TDS meters mentioned above are the most reliable and accurate in the market, ensuring the water at your home is safe for drinking and every other purpose. Ultimately, we recommend that buyers go for HM Digital TDS-3 Meter as it supports a wider measurement range (0 to 9990 PPM) and has 3 years warranty. On the other hand, Konvio Neer Imported TDS Meter or Themisto TH-TDS10 Digital TDS Meter are also two other effective option if you’re looking for an affordable pick.

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Frequently Asked Questions (FAQs) :

What TDS is suitable for drinking water?

A TDS level of below 150 is considered healthy for drinking water. Anything above a range of 300-350 is unacceptable, and drinking water with a TDS level higher than 500 can affect your health.

Does boiling water reduce TDS?

Boiling your water does not reduce the concentration of organic and inorganic minerals as they do not evaporate easily. Therefore, you cannot reduce the TDS in water by boiling it.

Are TDS meters accurate?

Yes, most TDS meters use titanium alloy electrodes that can provide up to 98% accuracy.

Does RO filter reduce TDS?

Yes. When water passes through the membrane of filters in your RO purifier, it removes the microparticles and minerals, which can help to reduce the TDS level.