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| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | ORP-30 |
| Instrument Type | Laboratory-Grade Portable ORP Meter |
| ORP Measurement Range | −1000 to +1000 mV |
| Resolution | 1 mV |
| Accuracy | ±15 mV |
| Repeatability | ≤3 mV |
| Calibration | Single-point with auto-recognition of 222 mV standard buffer |
| Temperature Range | 0.0–60.0 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.3 °C |
| Automatic Temperature Compensation (ATC) | 0.0–60.0 °C |
| Enclosure Rating | IP67 |
| Housing Material | ABS |
| Power Supply | 4 × AAA batteries |
| Battery Life | >200 h |
| Dimensions (L×W×H) | 188 × 40 × 30 mm |
| Weight | ~0.15 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Region Category | Domestic (China) |
| Model | YHBJ-262 |
| Price Range | USD 280–700 |
| Instrument Type | Laboratory-Grade Portable ORP Meter |
| ORP Range | (−2000.0 to +2000.0) mV |
| ORP Resolution | 0.1 mV |
| ORP Accuracy (Electronic Unit) | ±0.1% or ±0.3 mV |
| ORP Repeatability (Electronic Unit) | 1 mV |
| ORP System Accuracy (with electrode) | ±15 mV |
| pH Range | −2.00 to 20.00 |
| pH Resolution | 0.01 |
| pH Accuracy (Electronic Unit) | ±0.01 pH |
| pH Repeatability (Electronic Unit) | 0.005 pH |
| Input Current | ≤1 × 10⁻¹² A |
| Input Impedance | ≥1 × 10¹² Ω |
| pH System Accuracy | ±0.02 pH |
| pH System Repeatability | 0.01 pH |
| Temperature Range | −5.0 to 110.0 °C (23.0 to 230.0 °F) |
| Temp. Resolution | 0.1 °C / 0.1 °F |
| Temp. Accuracy (Electronic Unit) | ±0.2 °C |
| Temp. System Accuracy | ±0.4 °C (0.0–60.0 °C), ±1.0 °C (other ranges) |
| IP Rating | IP65 |
| Dimensions | 80 × 225 × 35 mm |
| Weight | 0.4 kg |
| Power | Rechargeable Li-ion battery |
| AC adapter input | 100–240 V AC, output: 5 V DC |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | TR-901 |
| Instrument Type | Laboratory & Field-Portable ORP Meter |
| Measurement Range | ±2000 mV (ORP), 5.0–60.0 °C (Temperature) |
| Resolution | 1 mV (ORP), 0.1 °C (Temperature) |
| Basic Error | ±1 mV (within −1000 to +1000 mV), ±0.1% FS (outside that range) |
| Calibration | 1-point or 2-point ORP calibration |
| Temperature Compensation | Automatic and manual modes |
| Data Storage | 500 measurement sets |
| Protection Rating | IP65 |
| Power Supply | Rechargeable Li-ion battery, compatible with external mobile power banks |
| Display | Color touchscreen with guided navigation interface |
| Sampling Interval | Configurable in minutes |
| Additional Features | Auto-read lock, auto-backlight, auto-power-off, dual-channel ORP input |
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