Best TDS Meter in India for Drinking Water: Digital TDS Sensors to buy in 2019

Best TDS Meter in India for Drinking Water: Digital TDS Sensors to buy in 2019

It’s known to everyone that a TDS meter is the most efficient way to test the quality of your drinking water. Known by other names like TDS sensor or TDS tester, these devices give you the Total Dissolved Solvent level(contamination level) of water.

Getting the TDS reading of your municipal water or groundwater supply through government organizations is not an easy task. In this case, buying the best TDS meter for drinking water is the most ideal solution.

The affordable budget and its daily usage to improve the quality of water make it a wise investment.

So, if you are in a hurry, here are our favourite choices.

Best Digital TDS Meters in India

Product Highlights
Generic Digital 

(Best TDS Checking Machine)

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  • Measures TDS and temperature
  • Automatic temperature compensation (ATC)
  • Water-resistant housing
  • Range: 0-5000 ppm

(Most Affordable Water TDS Meter)

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  • Includes carrying case
  • Can be used for filters, purifiers, spa, pools, etc.
  • Digital LCD
  • Aesthetic
Generic Digital TDS-3 

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  • Hold function
  • Digital Thermometer
  • Includes carrying case
  • Multicolor
HM Digital AP 

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  • Measures TDS and temperature
  • Water-resistant
  • Auto-off feature
  • Low-battery indicator
Luzon Dzire
  • Includes carrying case
  • Highly efficient and accurate
  • Built-in digital thermometer
  • Ideal for commercial use

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  • Good quality
  • Ideal for RO purifier
  • TDS meter with temperature
  • Auto switch off
HM Digital TDS-3
  • Carrying case with belt clip
  • Hold function
  • Range: 0-9990 ppm
  • Advance microprocessor technology


  • Range: 0-9990 ppm
  • Temperature: 0-50 C
  • Includes user manual
  • For both domestic and commercial use
Wellon Digital 

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  • Includes belt clip and case
  • Auto-off function
  • TDS meter and thermometer
  • Saves reading with Hold function

What is a TDS meter?

TDS meter for drinking water

A TDS water meter is a tool that indicates the amount of total dissolved solids (TDS) in the water. The hand-held product measures electrical conductivity (EC). EC concentration increases by the presence of ionized solids like salts and minerals.

It does not detect dissolved organic solids as they do not affect the conductivity of the solvent.

Here are some critical notes regarding TDS sensor:

  • The readings are expressed in terms of PPM or parts per million.
  • It can be used to find out the TDS of your household reverse osmosis purifying system.
  • Additionally, it can also be used to assess the quality of water in the aquarium or swimming pools.

The tool looks like a thermometer and has a digital screen to express the reading. They typically come with a hold-function, which helps you stabilize and save the levels. Moreover, the power on and off features help you conserve energy to extend battery life.

The water quality tester can come in pretty handy to find out about the performance of your RO water purifier. It can also identify if the filters are working efficiently or require any replacements.

A TDS tester is readily available in markets and is affordable too! Buying it could also help to extend your filter and purifier life.

Best TDS Meter in India: Reviews

1. Generic Digital

Generic Digital is a high-class product made to satisfy consumer needs. You can employ it for domestic and commercial uses to find out the quality of water. When switching from another brand, it is the first product to consider if budget is not an issue.

The temperature sensor is another plus point about the product. It offers you a digital reading, helping you get the desired temperature.

Customers that bought Generic Digital had the following to say:

  • It has superb quality and a water-resistant body.
  • The glossy exterior makes it pretty impressive.
  • It helps you expose the lies of most purifier companies and allows you to assess performance.

Moreover, the auto power feature helps you conserve battery, limiting replacements.

Pros Cons
  • Easily available battery type
  • Temperature reporting
  • Accurate reading
  • High-quality
  • Expensive compared to other meters

It may appear costly, especially when comparing it with competitors. However, this digital TDS meter offers you reliability and accuracy like none other! The supreme quality means a long life, which undoubtedly sounds like an excellent investment.

2. Ionix

Ionix is another renowned brand when it comes to the TDS sensor. The brand prioritizes reliability and accuracy over everything else! That gives the customer ultimately surety of the quality of the product.

The best aspect of the product is its user-friendly features. You can use it without any hassle!

Are you on a limited budget and want something affordable yet high-quality? Ionix is to go for!

Here are some notable features of the brand:

  • It is aesthetic and has a very trendy appearance.
  • The leather pouch comes in handy for storing and carrying the TDS tester.
  • It comes with a battery that gives you every reason to be happy!

However, keep in mind; you will need extra care when using the product. It is not waterproof!

Pros Cons
  • Easy to use
  • Accurate results
  • Value for money
  • Case can come in handy for storing the meter
  • It is not waterproof

We strongly recommend this product to customers looking for a budget-friendly product. With Ionix, there will be no room for complaining!

3. Generic Digital TDS-3

If you’re worried about your water’s hardness or quality, what you need is this meter! The portable, hand-held tester gives you precise measures of salt concentrations. It helps you analyze the performance of filters and purifiers.

The best feature that differentiates Generic Digital from others is its replaceable batteries. Initially, brands came up with products with hard-to-find batteries. Once exhausted, the meters had to be discarded.

However, with this feature, you save cost and effort by simply replacing the batteries.

Here are some additional features of the Generic Digital TDS-3:

  1. The built-in thermometer gives you accurate temperature readings.
  2. You can use it for purifiers, pools, aquariums, and spas.
  3. The product includes a handy carry case.
  4. Its hold function enables you to save the measure.
Pros Cons
  • Clear display
  • Replaceable battery
  • Instantaneous reading
  • Affordable
  • Maybe short-lived

This water TDS meter is a great purchase considering its efficient performance. However, a few customers have received a short-lived product. Since the product is affordable, we would not mind testing it out, given its accuracy.

4. HM Digital AP-1

The easy-to-read LCD screen of the HM Digital AP-1 is one-of-its-kind. The clear indication comes in handy in testing out the water-quality indoors and outdoors.

Though the product is slightly costly compared to the other products, it sure is worth the purchase. It gives accurate and reliable results with its superior quality. It is one of the primary reasons it has become a consumer-favorite TDS checking machine.

Here’s what it includes:

  • Water-resistant housing
  • Auto-off function
  • Low-battery indicator
  • Data-hold function

With these features at hand, what more could one want?

The HM Digital AP-1 has a good-quality finish and modern look, which is perfect for your kitchen. It can be super useful for individuals that are conscious about the quality of water of their RO systems.

Pros Cons
  • Accurate reading
  • Durable
  • Consistent
  • Value for money
  • Bit expensive

It is durable, consistent, everything you need it to be! HM Digital is worthy of purchase.

5. Luzon Dzire

If you’re looking for an average-priced premium product, look no further! Here is a super-efficient, affordable product fit for all your needs. It provides accurate and reliable results, leaving no room for error.

Luzon Dzire comes with a handy cover that helps you store the meter. It can be carried around without damaging the casing or screen.

The Luzon Dzire includes these additional features:

  1. It monitors drinking quality in swimming pools, spas, and aquariums.
  2. It offers accurate results with its advanced microprocessor technology.
  3. The meter also includes a built-in thermometer

The only thing the brand needs to improve about this TDS meter is the product-life.

Pros Cons
  • Instant reading
  • Comes with cover
  • Affordable
  • Accurate
  • Not durable

With so many handy features in one product, we don’t see why you’re looking for more.

6. Yuv’s

Here is another reasonably-priced TDS meter known to do its job well. It saves battery with its auto-shutoff feature and promises reliable results.

The instant results help you save time without compromising on accuracy.

What customers admire about Yuv’s is:

  • High-quality
  • Value for money
  • Battery-saving feature

One thing the brand should look at is the loose cap, which can cause damage to the processor.

Pros Cons
  • Reasonable price
  • Auto-shutoff
  • Value for money
  • Reliable
  • No instructions
  • Loose cap

With the cap and instruction taken care of, the product can easily find a place among the top-rated TDS sensors.

7. HM Digital TDS-3

Here is another HM digital TDS-3 Meter made to facilitate water-quality testing. Due to the advanced microprocessor technology, it ensures timely and accurate results. Moreover, it is ideal for commercial usage with its range of 0-9990.

However, from 1000 till 9990, the resolution is in increments of 10 ppm.

Furthermore, the easy-to-read display is one of its top features, making it user-friendly.

Other features appreciated by most consumers are:

  • The leather pouch is very convenient.
  • It comes with a warranty.
  • Quick results

However, low-quality means the product may be short-lived. But, with extra care and protection, we are hopeful this water TDS meter will last long enough.

Pros Cons
  • Includes leather pouch
  • Easy to use
  • Instant reading
  • Not durable
  • Average quality

Going by most consumer reviews, it is an efficient product. However, it is a little costly!


If you’re uncertain about your purifier performance or water-quality, you need the GSK TDS-3 meter.

Here is what it can do:

  • It has a range of 0-9990 ppm.
  • It measures a temperature range of 0-50 C.
  • The accuracy is +/- 2%.
  • The battery life is about 100 hours.

GSK TDS-3 TDS tester comes with a straightforward manual to guide you regarding operation. It helps the consumer use the product conveniently, without any hassle.

Moreover, the extra batteries can come in handy and will also save you the cost. Most importantly, this helps extend the product life, making it durable.

Pros Cons
  • Durable
  • Extra batteries
  • Easy to operate
  • Most consumers received a non-calibrated meter.
  • Low-quality

The product is a good purchase when you’re going by a budget.

9. Wellon Digital

Good things don’t usually come cheap, but Wellon Digital sure does! This budget-friendly water TDS meter does everything you expect from a water quality tester.

The Wellon Digital is good with the following things:

  • It is ideal for testing the functioning of your water filter.
  • The digital TDS meter offers almost instant results.
  • It is waterproof, which makes it safe-to-use.
  • With accurate results, you can be at ease; knowing the water you’re consuming is safe.
  • The auto-shutoff feature helps you save battery, extending the product life.

However, keep in mind; the results are accurate to +/- 2% ppm. Moreover, a few consumers faced issues with the meter and its life.

Pros Cons
  • Quick results
  • Waterproof
  • Auto shut off
  • Not that accurate
  • Maybe short-lived

At this price, it is close to impossible to get a product as efficient as Wellon!

Product Temperature Hold Function Price
Generic Digital $$$
Ionix $
Generic Digital TDS-3 $
HM Digital AP-1 $$$
Luzon Dzire $
Yuv’s $
HM Digital TDS-3 $$$
Wellon Digital $$

Buying Guide

how to buy a water TDS meter

Here are some notable factors to consider when purchasing a digital TDS meter.

Battery saving feature

Batteries play an essential role in the life of this tool. Extensively running the product will exhaust its battery life. It means that you will need to buy another meter shortly after your use.

However, to increase the longevity of the product, the meters come with battery-saving features. By shutting off automatically, they preserve energy, increasing battery life. That makes TDS checking machines cost-effective too!


The recent advancement in their technology is the microprocessor one. It ensures that the user gets accurate and reliable results.

Most meters use the electrical conductivity measurements, which assesses the presence of electrolytes. For this reason, it becomes crucial to opt for advanced technologies. They employ several principles and conversions to ensure accuracy.

It is also vital so that the meter gives a measure of toxic metals and chemicals present in the water.


Another major determinant to look at is the price tag. A higher price tag does not necessarily mean high-quality. In fact, the majority of the medium-priced products work just as well as the high-end ones.

Take the budget into consideration when checking out the TDS water meter.


If you still have questions regarding their importance and performance, take a look at these FAQs.

Are TDS meters accurate?

Accuracy becomes especially crucial with a tool like this one. In terms of conductivity, readings as low as zero are preferred. Most devices contain minimum and maximum ranges as an expression of TDS detection.

Since they measure electrical conductivity, the results are never 100% accurate. However, they are pretty close to the actual measure.

How accurate are TDS meters?

A typical TDS meter is accurate to plus/minus 2 per cent. With a ppm of 1000, you can find out the accuracy by multiplying 1000 with 0.2. It means the results are typically different from +/- 20 ppm.

What does a TDS meter tell you?

The typical TDS meters are similar to most thermometers. They are hand-held and easy-to-use. You can insert their tips in filtered water or in pools to find out the concentration of salts and other solids.

However, it is essential to note that a TDS meter doesn’t measure the level of solids, but in fact, the electrical conductivity (EC). It is a measure of the positively and negatively charged ions.

Pure water has an electrical conductivity of zero. If there is a measure of above zero, it indicates the existence of salts and solids in the water.

The meter then converts this EC to TDS and also measures the temperature.

What is the difference between TDS and PPM?

PPM is a measure of TDS and stands for parts per million. It means, your meter will mostly offer you a reading of, for example, 200 ppm of total dissolved solids.

What is TDS 3 meter?

TDS-3 is a digital TDS meter useful got almost any application. It estimates the quality of water in your purifier, spa, pool, or anywhere. You can even use it for industrial wastewater treatment.

The HM TDS-3 is a commonly used TDS sensor. It is portable and highly reliable, making it ideal for both domestic and commercial use. It is based on conductivity and expresses the readings in ppm.

Both TDS-3 and TDS-4 measure the same range: 0-9990 ppm. However, TDS-3 is more for commercial use, when compared to the lightweight and small-sized TDS-4.

How much TDS water is good for health?

According to the Environmental Protection Agency (EPA), the permissible levels of TDS concentration are 500 ppm.

The World Health Organization (WHO) considers a TDS of above 1200 mg/litre as undrinkable. The recommended TDS levels are 300 mg/litre. Therefore, it is essential to check the concentration of your water before consumption.


TDS testers are handy in checking if your purifier is working to its best ability. It also ensures the water you’re consuming is healthy or not. Considering its efficiency and user-friendly features, anyone can use it.

While they don’t precisely measure TDS, the electrical conductivity measure is also a reliable way. You can find out the quality of water in the aquarium or swimming pool and also of the reverse osmosis system at home.

The tool can help increase the lifespan of your purifiers. With a TDS water meter at hand, you will be able to estimate changes and replacements timely.