High-Precision TDS Water Quality Test Pen—Multifunctional Drinking Water Tester for Home Use

Model: WQM01H-4

Product Name: Multi-Parameter Spectral Water Quality Tester—Water Detective 4

Dimensions: 175 mm × 38 mm × 21 mm

Weight: 80g (excluding batteries)

Power Supply: DC 3V (can be powered by two or four AA batteries)

Wireless Functionality: Low-Power Bluetooth

Operating Conditions: Indoor or outdoor non-extreme environments, 10–40°C, no refrigeration required.

Note: Specific parameters and the number of detectable parameters may vary slightly depending on the device model; the actual results displayed on the device shall prevail.

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Nine-Parameter Device

TOC: Range 0–100 mg/L, display resolution 0.1 mg/L, repeatability ≤±0.2 mg/L, accuracy 10% F.S.

COD: Range 0–100 mg/L, display resolution 0.1 mg/L, repeatability ≤±0.2 mg/L, accuracy 10% F.S.

UV254: Range 0–2 au/cm; display resolution 0.0001 au/cm, repeatability ≤±0.001 au/cm, accuracy 10% F.S.

Turbidity: Measurement range 0–20 NTU; display resolution 0.1 NTU; repeatability ≤±0.2 NTU; accuracy 10% F.S.

TDS: Measurement range 0–20,000 ppm; display resolution 1 ppm; repeatability ≤±10 ppm; accuracy 10% F.S.

Conductivity: Range 0–60,000 μS/cm, display resolution 1 μS/cm, repeatability ≤±20 μS/cm, accuracy 10% F.S.

Salinity: Range 0.1–4%; display resolution 0.1% (1 ppt), repeatability ≤±0.2%, accuracy 5% F.S.

Hardness: Range 0–1,000 ppm; display resolution 1 ppm; repeatability ≤±10 ppm (applicable only to tap water; for reference only)

Temperature: Range 0–80 °C; display resolution 0.1 °C; repeatability ≤±0.2 °C; accuracy ±0.5 °C

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Six-Parameter Analyzer

TOC: Range 0–100 mg/L, display resolution 0.1 mg/L, repeatability ≤±0.2 mg/L, accuracy 10% F.S.

COD: Range 0–100 mg/L, display resolution 0.1 mg/L, repeatability ≤±0.2 mg/L, accuracy 10% F.S.

UV254: Range 0–2 au/cm; display resolution 0.0001 au/cm, repeatability ≤±0.001 au/cm, accuracy 10% F.S.

TDS: Range 0–2000 ppm, display resolution 1 ppm, repeatability ≤±10 ppm, accuracy 10% F.S.

Conductivity: Range 0–4000 μS/cm; display resolution 1 μS/cm; repeatability ≤±20 μS/cm; accuracy 10% F.S.

Temperature: Range 0–80°C; display resolution 0.1°C; repeatability ≤±0.2°C; accuracy ±0.5°C