Aqua-pal Tds 3 Tester

Digital Conductivity Tester in µS

Conductivity is a measure of water's ability to conduct an electrical current, which is dependent on the concentration of minerals in the water. The unit used in measuring water conductivity is called the 'Microsiemens' (µS) for water of low salt content. For water rich in salt content, the Millisiemens (mS) is used.

1 mS = 1000 µS

Conductivity measures the total salt minerals present in water and individual salt cannot be differential. Nevertheless, a useful rule of thumb is:

Conductivity in µS = 2 (Dissolved solids in ppm of NaCI)

Water's salt content is vital for successful breeding of many fish. The salt content exerts a decisive influence on the fish eggs' osmotic pressure i.e. the pressure existing between the inner and outer solution. This results in the egg's ability to expand or to contract when confronted with unaccustomed salt conditions. Expansion and contraction of the egg can destroy its ability to develop.

Are you still measuring dissolved mineral in water using a hydrometer?
A conductivity tester or meter can give higher accuracy and detect changes that are too small to register on a hydrometer yet important in an aquarium that requires very stable condition, such as a breeding aquarium or nursery.

Trans's Eco µSiemen is a self-contained, digital pocket size conductivity meter with cell and automatic temperature compensator. It provides quick and accurate reading. All you need to do is to turn the tester on and dip into sample solution. Any irregularities of the conductivity can be corrected by adding water.

Range: 10 to 1,990 µS

Resolution: 10 µS
Accuracy: ± 2% full scale
Automatic Temperature Compensation: 0 to 50°C
Battery Type: 4 x 1.5V button cell (Alkaline A76 or equivalent)
Battery Life: Approx. 100 hours
Size (LxWxH): 147mm x 32mm x 15mm
Weight: Approx. 60 gm
Calibration Solution: 2010 Standard Solution