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| Brand | Hach |
|---|---|
| Origin | USA |
| Model | HQ1130 |
| Instrument Type | Portable |
| Measurement Principle | Polarographic Electrochemical Probe |
| Range | 0.1–20.0 mg/L (ppm), 1–200% Saturation |
| Accuracy | ±0.1 mg/L |
| Ingress Protection | IP67 |
| Data Storage | Up to 10,000 Records |
| Compliance | GLP-Compliant Logging, ASTM D888, ISO 5814, USP <643>, EPA Method 4500-O G |
| Brand | Hanna |
|---|---|
| Origin | Italy |
| Model | HI9147 |
| Instrument Type | Portable |
| Measurement Principle | Galvanic Cell Electrochemical Probe |
| DO Range | 0.0 to 50.0 mg/L (ppm) |
| Saturation | 0 to 600% |
| Accuracy | ±1% of reading |
| Resolution | 0.1 mg/L (DO), 1% (saturation) |
| Temperature Range | 0.0 to 50.0 °C |
| Temp. Accuracy | ±0.2 °C |
| Altitude Compensation | 0 to 4000 m |
| Salinity Compensation | 0 to 51 g/L |
| Electrode | HI76409 galvanic DO probe with integrated temperature sensor, 4/10/15 m cable options |
| Power | 3 × 1.5 V AAA batteries |
| IP Rating | IP67 |
| Dimensions | 185 × 72 × 36 mm |
| Weight | 450 g |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | Ca-11 |
| Instrument Type | Portable Ion Meter |
| Measurement Range | 4–9900 ppm (mg/L) Ca²⁺ |
| Detection Limit | ±1 ppm (0–99 ppm), ±10 ppm (100–990 ppm), ±100 ppm (1000–9900 ppm) |
| Response Time | ≤5 s |
| Accuracy | ±20% of reading |
| Operating Temperature | 5–40 °C |
| Relative Humidity | ≤85% RH (non-condensing) |
| IP Rating | IP67 |
| Sensor Replaceable | Yes (approx. 1500 measurements per sensor) |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | QbD1200+ |
| Oxidation Method | UV/Persulfate |
| Measurement Range | 0–100 ppm |
| Detection Limit | 3 ppb |
| Accuracy | ±3% |
| Precision (RSD) | <2% |
| Compliance | FDA 21 CFR Part 11, USP <643>, EP 2.2.44, JP 2.59, ISO 8245, ASTM D5903 |
| Operating System | Pre-installed Microsoft Windows 10 IoT Enterprise |
| Display | 10.4-inch capacitive touchscreen |
| Data Storage | 256 GB SSD |
| Sample Introduction | Manual or optional 64-position autosampler (40 mL vials) |
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