pH/ORP Meter ADPO-502 offers a pH and redox measuring range of 0 to 14 pH and -2000 to 2000mV respectively. It provides precise readings with high resolutions, enabling users to detect slight variations in results. With a broad temperature range of -10.0⁰C to 110.0⁰C, this unit can be used for a variety of environmental samples. An extended battery life of 500 hours allows uninterrupted usage for efficient operation. This pH/ORP Meter is essential for precise pH and redox potential measurement in research laboratories and chemical industries.
| pH Measuring Range | 0 to 14 pH |
| pH Resolution | 0.041 pH |
| pH Indication Error | ±0.02 pH |
| Redox Measuring Range | -2000 to 2000mV |
| Redox Resolution | 1 mV |
| Redox Indication Error | ±0.2% F.S. |
| Temperature Measuring Range | -10.0⁰C to 110.0⁰C |
| Temperature Resolution | 0.1⁰C |
| Temperature Indication Error | ±0.2⁰C |
| Power Supply | 2 AAA batteries |
| Battery Life | More than 500 hours |
| First Group Buffer | 4.00, 6.86, 9.18 |
| Second Group Buffer | 4.01, 7.00, 10.01 |
| Operating Temperature | -5⁰C to 60⁰C |
| Operating Humidity | Relative humidity <90% |
| Data Storage | 256 sets of values |
| Dimension (L×B×H) | 210×95×35 mm |
Our pH/ORP Meters help in accurately controlling and monitoring pH and ORP levels in wastewater treatment plants, food, beverage, aquaculture, chemical and pharmaceutical industries.
| pH Measuring Range | 0 to 14pH |
| pH Resolution | 0.01pH |
| pH Measuring Accuracy | ±0.01pH |
| COD Range: | 0 to 10000 mg/L (Customized) |
| Principle: | UV 254 |
| Resolution: | 0.01 mg/L |
| COD Detection Method: | Potassium dichromate method<br/> Potassium permanganate method |
| COD Measuring Range: | 10 to 15000 mg/L |
| COD Lower Limit of Measurement: | 3 mg/L |
| Indication Error: | ≤±5% |
| Repeatability: | 0.03 |
| COD Detection Method: | Potassium dichromate method, Potassium permanganate method |
| COD Test Method: | Potassium dichromate method<br/> Alkaline potassium permanganate |
| COD Measuring Range: | 10 to 15000mg/L<br/> 0.5 to 25mg/L |
| COD Test Limit: | 10mg/L<br/> 0.5mg/L |
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| Absorbance Detection Range: | 0 to 3Abs |
| Optical Path Stability: | ≤±0.005Abs/30min |
| Absorbance Resolution: | 0.001Abs |
| Dissolved Oxygen Measuring Range: | 0 to 20mg/L；0 to 200% |
| Resolution Ratio: | 0.01mg/L；0.1% |
| Measurement Accuracy: | 0.05mg/L;0.5% |
| Dissolved Oxygen Measuring Range: | 0 to 20 mg/L |
| Saturation Measuring Range: | 0 to 200% |
| Temperature Measuring Range: | 0 to 50℃ |
| Dissolved Oxygen Concentration Measuring Range: | 0 to 20 mg/L |
| Dissolved Oxygen Concentration Resolution: | 0.01 mg/L |
| Dissolved Oxygen Concentration Accuracy: | ≤±0.30 mg/L |
| Test Parameter: | Ammonia nitrogen |
| Measuring Range: | 0.01 to 10mg/L |
| Wavelength: | 420 nm |
| Test Parameter: | Total Chlorine |
| Measuring Range: | 0.05 to 10 mg/L |
| Wavelength: | 520 nm |
| Test Parameter: | Residual Chlorine |
| Measuring Range: | 0.05 to 10 mg/L |
| Wavelength: | 520 nm |
| Test Parameter: | Ozone |
| Measuring Range: | 0.05 to 2.5mg/L |
| Wavelength: | 520 nm |
| Test Parameter: | Chlorine dioxide |
| Measuring Range: | 0.1 to 5 mg/L |
| Wavelength: | 520 nm |
| Measuring Range: | 0 to 1000 NTU (Selectable ranges: 0 to 20 NTU, 0 to 200 NTU, 0 to 1000 NTU) |
| Accuracy: | ±0.1NTU or ±5%<br/> ±0.3NTU or ±8% |
| Repeatability: | ≤±0.1NTU at＜10NTU<br/> ≤±1% at ≥10NTU |
| TSS Measuring Range: | 0 to 1000mg/L |
| TSS Accuracy: | ±0.3mg/L or ±8% |
| TSS Repeatability: | <10mg/L: ≤±0.1mg/L <br/> ≥10mg/L: ≤±1% |
| TDS Range: | 0 to 9999 ppm |
| Conductivity Range: | 0 to 9999 μS/cm |
| Temperature Range: | 0 to 80℃ or 32 to 176℃ |
| Measuring Range: | 0 to 10% |
| Measuring Temperature Range: | 0 to 99℃ |
| Resolution: | 0.01%，0.1℃ |
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| Temperature Control Range: | 45 to 180℃ |
| Digestion Temperature: | 45 to 180℃ |
| Temperature Control Accuracy: | ±0.1℃ |
| Temperature Control Range: | Room temperature to 180℃ |
| Digestion Temperature Range: | 50 to 180℃ |
| Temperature Control Accuracy: | ±0.1℃ |
| pH Measuring Range: | -2 to 16 pH |
| pH resolution: | 0.1pH |
| pH indication error: | ±0.2% F.S. |
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| ORP Measuring Range: | -1000mV to 1000mV |
| ORP Resolution: | 1 mV |
| ORP measurement Accuracy: | ±0.5% F.S. |