The Ermenrich Wett QT20 water quality meter is a small and useful tool for checking water from various sources, such as flow filters, wells, boreholes, taps, and aquariums. The device is also suitable for professional applications, such as industrial facilities, public swimming pools, and fish farms.

Below are the main features of the device:

• Protection: According to IP65 standard for protection against dust and water splashes.
• Measurement error: Metal content and water electrical conductivity ±2%.
• Calibration: Using calibration solutions, including packets with powders for their preparation (pH 4.00, 6.86, and 9.18).
• Operating time: 45-50 hours of continuous operation with fully charged batteries.

The meter stands out for its capabilities in the following areas:

• pH: Measures in the range 0 - 14 with an error of ±0.05.
• Metal content/hardness: Measured in the range 0-200,000 ppm (mg/l) or 10.1-200 ppt (g/l).
• Electrical conductivity: Measured in the range 1 – 199,990 μS/cm.
• Temperature: Measured in the range 0 – 60 °C (can display in ºC or ºF).

The water quality measurement is performed by immersing the electrode in the water, and the result is displayed on a clear illuminated LCD screen. The Ermenrich Wett QT20 is sufficient for checking the quality of any water, whether ideal for drinking (0-50 ppm) or hazardous (>1000 ppm).