Chihiros TDS Meter

Chihiros TDS Meter

  • Measuring device for electrical conductivity
  • Checking the aquarium water
  • Early warning system for water values
  • Batteries not included
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The TDS meter (Total Disolved Solids meter) from Chihiros measures the amount of dissolved solids (e.g. minerals, salts, metals) contained in the water via the electrical conductivity and the water temperature. This conductivity value makes it possible to determine the time of the water change more precisely through regular measurements. The substances in the aquarium water accumulate over a period of time depending on various factors, e.g. the nutrient consumption of water plants as well as water pollution through fish faeces. A high electrical conductivity, thereofre, indicates that either many unwanted and unused nutrients are dissovled or that toxic substances from water pollution are present. A quick water change is necessary, followed by a detailled analysis of the water's parameters.

In addition, a quickly lowering electrical conductivity indicates a lack of nutrients, which may be the case in very well planted tanks. Especially in those cases, the TDS-meter is a very helpful tool to monitor the overall condition of the aquarium.

For operation, the TDS-meter requires two 1,5 V Botton cells. These are not included in the scope of delivery.

You can find information about the conductance in the aquarium in German in our wiki article Der Leitwert im Aquarium .


  • Shows the total amount of dissolved substances in water
  • A very high electrical conductivity indicates the need of a water change
  • Temperature measurement possible
  • Early warning system for water values
  • Battery needed: 2x 1,5 V (LR44) Button cell

Technische Daten

Chihiros - TDS Meter
Measuring range - TDS 0-9990 ppm
Measuring range - Temperatur 0-8 °C
Measurement accuracy +/-2%



Chihiros Aquatic Studio is a technology company specialised in aquatic products. Since the foundation in 2014 the name Chihiros has produced some significant waves. Through good quality and an excellent price-performance ratio, a sustainable and growing influence on the market of aquaristic technology could be achieved. With innovative ideas, such as lamps that can be controlled via Bluetooth and WIFI, chic designs and, above all, a lot of technology at attractive prices, Chihiros has been able to secure a firm place in many living rooms and hearts of aquarium enthusiasts. In addition to LED lamps, the product range also includes accessories for aquarium filters, tools and glassware.

General information

Item no.
Weight 0,05 kg
Shipping weight 0,10 kg

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This item has been rated 5 out of 5 stars
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Valerio P.
Nice ti have
7th July 2022

Very helpful to quickly check if ferts are accumulating or uptaken by the plants. Suggested if you have an osmosis system, to control if its performing well after the... (read more)

Carlos Baia Mendes
Do what its suppose to to
9th May 2022

Now I can keep an eye on PPM Water and do water changes when needed!

Easy to use, just had to order the batteries :) Thanks!