Understanding the Importance of TDS Meter in Water Quality Testing and its Impact on GST Rates

Total Dissolved Solids (TDS) refer to the amount of Inorganic Salts and organic matter present in water. It is a crucial parameter in determining the quality of water for various purposes, including drinking, irrigation, and industrial use. TDS meters are devices used to measure the TDS Levels in water accurately. These meters play a vital role in ensuring that water meets the required standards for safe consumption and use.

The importance of TDS meters in water quality testing cannot be overstated. High TDS levels in water can indicate the presence of contaminants such as heavy metals, salts, and other harmful substances. These contaminants can have adverse effects on human health and the Environment. By measuring TDS levels, water quality experts can assess the purity of water and take necessary steps to treat it before consumption or use.

In recent years, the Indian government has taken steps to promote the use of TDS meters for water quality testing. One such initiative is the implementation of the Goods and Services Tax (GST) on TDS meters. The GST rate on TDS meters is set at 18%, making it more accessible and affordable for consumers and businesses to invest in these essential devices for water quality testing.


The impact of GST rates on TDS meters is significant for both manufacturers and consumers. The reduced tax rate on TDS meters has made them more affordable for consumers, leading to an increase in their adoption for water quality testing purposes. This, in turn, has helped improve the overall quality of water available for consumption and use in various sectors.

Model CIT-8800 Inductive Conductivity/Concentration Oline Controller
Concentration 1.NaOH:(0~15)% or(25~50)%; 2.HNO3:(0~25)% or(36~82)%; 3.User-defined concentration curves
Conductivity (500~2,000,000)uS/cm
TDS (250~1,000,000)ppm
Temp. (0~120)\\u00b0C
Resolution Conductivity: 0.01uS/cm; Concentration: 0.01%; TDS:0.01ppm, Temp.: 0.1\\u2103
Accuracy Conductivity: (500~1000)uS/cm +/-10uS/cm; (1~2000)mS/cm+/-1.0%
TDS: 1.5 level, Temp.: +/-0.5\\u2103
Temp. compensation Range: (0~120)\\u00b0C; element: Pt1000
Communication port RS485.Modbus RTU protocol
Analog output Two channels isolated/ transportable (4-20)mA, Instrument / Transmitter for selection
Control Output Triple channels semiconductor photoelectric switch, Programmable Switch, pulse and frequency
Working Environment Temp.(0~50)\\u2103; relative humidity <95%RH (non-condensing)
Storage Environment Temp.(-20~60)\\u2103;Relative Humidity \\u226485%RH (none condensation)
Power Supply DC 24V+15%
Protection Level IP65 (with rear cover)
Dimension 96mmx96mmx94mm(HxWxD)
Hole Size 9lmmx91mm(HxW)

Furthermore, the implementation of GST on TDS meters has also boosted the manufacturing and sales of these devices in the country. With a lower tax rate, manufacturers can produce TDS meters at a competitive price, making them more attractive to consumers. This has led to an increase in the availability of TDS meters in the market, ensuring that more people have access to these essential tools for water quality testing.

The use of TDS meters in water quality testing is not only beneficial for human health but also for the environment. By accurately measuring TDS levels in water, experts can identify sources of contamination and take appropriate measures to prevent further pollution. This helps in preserving water resources and ensuring their sustainability for future generations.

In conclusion, TDS meters play a crucial role in water quality testing, helping to ensure the Safety and purity of water for various purposes. The implementation of GST on TDS meters has made these devices more accessible and affordable for consumers and businesses, leading to an improvement in water quality standards across the country. By investing in TDS meters and conducting regular water quality testing, we can protect human health and the environment from the harmful effects of water contamination.