The Yieryi YY-200 is a pocket 3-in-1 tester that measures TDS (0–9990 ppm), electrical conductivity (0–9990 µS/cm) and water temperature (0.1–80.0 °C) with a corrosion-resistant alloy probe, backlit LCD, factory pre-calibration and readings in under 5 seconds.
The Yieryi YY-200 is a compact pen-type tester that combines three measurements in one instrument: TDS (total dissolved solids) from 0 to 9990 ppm, EC (electrical conductivity) from 0 to 9990 µS/cm, and water temperature from 0.1 to 80.0 °C (32.0 to 176.0 °F). Resolution is 1 ppm / 1 µS for TDS and EC and 0.1 °C/°F for temperature.
A high-precision, corrosion-resistant alloy probe delivers stable readings in less than 5 seconds, with a stated accuracy of ±2% for TDS/EC and ±0.5 °C for temperature. The backlit LCD and the SHIFT button make it easy to switch between TDS, EC and temperature modes.
The meter is pre-calibrated at the factory and also allows manual calibration. It runs on replaceable LR44 batteries and is suited to drinking water, aquariums, hydroponics, swimming pools and industrial water testing.
| Manufacturer | Yieryi (YAGO TECHNOLOGY LIMITED) |
|---|---|
| Model | YY-200 |
| Functions | TDS, EC, Temperature |
| TDS Range | 0–9990 ppm |
| EC Range | 0–9990 µS/cm |
| Temperature Range | 0.1–80.0 °C (32.0–176.0 °F) |
| Resolution (TDS / EC) | 1 ppm / 1 µS |
| Resolution (Temperature) | 0.1 °C/°F |
| Accuracy (TDS / EC) | ±2% |
| Accuracy (Temperature) | ±0.5 °C |
| Response Time | Less than 5 seconds |
| Display | LCD screen (backlit) |
| Probe | High-precision alloy probe, corrosion-resistant |
| Calibration | Pre-calibrated at the factory; manual calibration available |
| Power Supply | 3 × LR44 batteries (replaceable) |
| Operating Temperature | 0–50 °C |
| Dimensions | 150 mm (length) × 20 mm (diameter) |
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