Luzon Dzire TDS3 Pocket Digital TDS Meter with Carry Case and Temperature Display

Good

this works exactly for 3 years and then dies. Bought first one in 2019, stopped working in 2022. Bought another piece in 2022. Died recently - 2025. So 4 stars is what it deserves.

Very simple to check the TDS of water for drinking use. I stopped using RO when found TDS of my RO water was found 20-22 with this metre. I used taking simple tap water coming in municipal connection. Its TDS is 122. Vey good for health. (Avg 100-300 best for health). So you can check your drinking water TDS periodically, say at least once in a month. Dont waste money and water on RO systems when your usual water TDS is between 100-400. Simple boil water and cool. use Mitti (earth)vessel. Old is GOLD. Overall happy with wonderful product. It is of CHINA origin!

The temp works, however the TDS meter itself doesn't show any value

I have been using the gadget for more than 3 years. Doing its job perfectly well, without any maintenance required. A must buy, for RO Purifier users.

I compared it with 3 other tds meters. All three are showing reading of 150 to 160 whereas this one is showing reading of 510 to 520. I didn't find breakage in the product but cannot trust the reading. I am sure I got a defective piece. The calibration might be off but that is somthing which I cannot do. Hence, in my opinion don't go for it.

Product is good and handy. Anyone who is looking for a reliable TDS meter then go for it, giving accurate reading. If anybody is about to buy a water purifier for home, better check TDS of the water to ensure and select the type of purifier you need. This 280₹ device can even save your 4000-5000 ₹. And will prevent you from buying the unwanted product.

I liked the product very much and it's useful. I recommend this to have for every household.