iSpring TDS 3-Button Digital Water Quality Test Meter with Temperature Test Function
About this item
- [Water Quality Testing Must-Have]: The iSpring TDS meter is a great water quality test tool for drinking water, water filtration and purification systems such as RO systems or DI systems, aquariums, hydroponics (test nutrients), pools and spas, commercial and industrial applications and more. The TDS meter is handy for checking your tap water quality and knowing when to change a filter.
- [[Multi-Functional TDS Meter] The TDS reading will be displayed on the LED screen in ppm (parts per million). TEMP button: Display temperatures. HOLD button: Lock and record readings. Auto-off Function: Shuts off automatically after a few minutes of inactivity.
- [Durable and Convenient] Sturdy plastic housing, light weight(1.76 oz), and included carrying case with belt clip for portability to any indoor or outdoor water testing site. A multifunctional TDS pen to know TDS and temperatures of water in any home, workplace, lab, or industrial environment.
- [Value Package] iSpring TDS meter x 1, Portable Leather Carrying Case with Belt Clip x 1, User Manual with TDS Chart x 1.
- [Peace-of-mind Customer Service] Backed by a risk-free 30-day money-back and extended manufacturer upon registration at iSpring. Lifetime CS and tech support(678-261-7611) from Atlanta, GA, USA. Please contact us if you have any questions or concerns. We're here to help!
Frequently Bought Together

iSpring TDS3 TDS 3-Button Digital Water Quality Test Meter with Temperature Test Function


Total Dissolved Solids, also known as TDS, are inorganic compounds that are found in water such as salts, heavy metals and some traces of organic compounds that are dissolved in water.
High TDS level alters the taste of water and makes it salty, bitter, or metallic. High TDS levels also indicate the presence of toxic minerals which is hazardous for health. High TDS makes water hard, leading to scale build-up in pipes, dry hair, spots on utensils and also makes the kitchen appliances ineffective. Checking the TDS level of water helps you avoid these problems beforehand.
The TDS level in water can be determined with the help of a TDS meter. Results are displayed in parts per million (ppm) — a reading of 1 ppm means that the water contains 1 milligram of dissolved solids per kilogram of water. According to the EPA, the maximum concentration of TDS for drinking water is 500 ppm.

Accurate and Easy-to-Use
- Advanced microprocessor technology
- Highly efficient and accurate
- ON/OFF button: Turn on or off the meter
- TEMP button: Display temperatures
- HOLD button: Lock and record readings
- Auto-off after a few minutes of inactivity

iSpring TDS: An Ideal Choice of Must-Have Water Quality Tool to Help You

Portable, Convenient, and Durable

- Availability: In Stock
- Model: TDS3
- Manufacturer: iSpring
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2020-03-17
This has been useful for me to measure the TDS for the water in my aquarium. Helps me keep track to keep my fish healthy.

2019-08-19
Just turn it on and put it in an inch of water, and you get a reading instantly. Very convenient.

2018-11-12
Does exactly what it says. Temps and PPMs appear accurate when compared to other products.

2018-11-04
Overall, this seems to be a solid TDS reader. Llightweight, easy to read, and quite accurate.

2018-08-13
Purchased this digital TDS meter which showed incoming water @ 60 & outgoing @ 6. Once all the fun was over, turns out the R/O water system is quite amazing.