A typical 7-in-1 digital meter tracks the following metrics:
- pH: Measures the acidity or alkalinity of the water on a scale of 0 to 14.
- TDS (Total Dissolved Solids): Estimates the total concentration of dissolved substances (minerals, salts, metals) in ppm.
- EC (Electrical Conductivity): Measures the water’s ability to conduct an electrical current, which indicates the presence of dissolved inorganic ions.
- ORP (Oxidation-Reduction Potential): Indicates the water’s clean-to-contaminate capacity and its ability to oxidize contaminants.
- Salinity: Measures the total salt content in the water.
- S.G (Specific Gravity): Measures the density of the water compared to pure water (useful for saltwater aquariums).
- Temperature: Measures water temperature, which is crucial as it affects both pH and EC readings.
