HY-304M Handheld Multi-Parameter Water Quality Analyzer

4M handheld multi-parameter water quality analyzer is suitable for on-site measurements . It can simultaneously measure multiple parameters such as dissolved oxygen, conductivity, pH, mV, and temperature. Various pH , conductivity , and dissolved oxygen electrodes are available as options, meeting the measurement requirements of industries such as environmental protection, power plants, pharmaceuticals, food, chemicals, and scientific research.

1. Dissolved oxygen

Measurement range: 0.00～50.00mg/L(ppm)

Resolution 0.01 mg/L (automatically switches according to measurement range)

Accuracy: ±0.1 mg/L

Response time: ≤15s (25℃, 90% response)

Compensation: temperature, salinity, air pressure

Calibration functions: zero point, air (air pressure, temperature)

Electrode type: Polarographic

2. Oxygen saturation

Measurement range: 0.0～300.0%

Resolution: 0.1%

Accuracy: ±1.0%

3. Electrical conductivity

Measurement range: 0.000 μS/cm～2000 mS/cm

Resolution: 0.001 μS/cm (automatically switches according to measurement range)

Accuracy: ±0.5%FS

Temperature compensation range: Automatic/Manual

Electrode constants: 0.01/0.1/0.32/1/10 cm⁻¹

Calibration function: Yes

4. TDS

Measurement range: 0.000 mg/L～1000 g/L

Resolution: 0.001 mg/L (automatically switches according to measurement range)

Accuracy: ±0.5%FS

5. Salinity

Measurement range: 0.00～8.00%

Resolution: 0.01%

Accuracy: ±0.1%

6. Resistivity

Measurement range: 5.00 Ω·cm～100.00 MΩ·cm

Resolution: 0.01Ω·cm (automatically switches according to measurement range)

Accuracy: ±0.5%FS

7. pH

Measurement range: -2,000 to 20,000 pH

Resolution: 0.001 pH

Accuracy: ±0.002 pH

Temperature compensation: Automatic/Manual

Calibration function: Yes

8.mV

Measurement range: -2000.00～2000.00mV

Minimum resolution: 0.01mV

Accuracy: ±0.1mV

9. Temperature

Measurement range: -10～135℃

Resolution: 0.1℃

Accuracy: ±0.1℃

Calibration function: Yes

1.One handheld multi-parameter water quality analyzer main unit.

2.One intelligent pH three-in-one electrode (PC).

3.One intelligent conductivity electrode (K=1).

4.One intelligent constant polarographic dissolved oxygen electrode.

5.One set of pH correction buffer solution (one bottle each of 4.00, 6.86, and 9.18).

6.One set of conductivity standard solutions ( one bottle each of 1408 μS/cm and 146.5 μS/cm).

7.One set of dissolved oxygen membrane assembly kit (1 bottle of dissolved oxygen electrolyte, 1 dissolved oxygen electrode membrane cap, 1 syringe), 4 AA batteries, 1 screwdriver, 1 set of instruction manual and certificate of conformity, and 1 portable protective carrying case.