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| Brand | BJBY |
|---|---|
| Origin | Beijing, China |
| Model | BY-800-HCHO |
| Principle | Photometric Colorimetry (GB/T 18204.2) |
| Measurement Range | 0.000–1.250 mg/m³ |
| Resolution | 0.001 mg/m³ |
| Sampling Method | Constant-Flow Sampling |
| Operating Temperature | 5–40 °C (±1 °C) |
| Relative Humidity Range | ≤90% RH (±2% RH) |
| Atmospheric Pressure Range | 30–120 kPa (±0.2 kPa) |
| Accuracy | ±5% of reading |
| Analysis Time | 10 min per sample |
| Display | 2.2-inch color LCD |
| Power Supply | 7.4 V rechargeable Li-ion battery |
| Data Storage | 8,000 records |
| Connectivity | Bluetooth for wireless printing |
| Compliance | GB/T 18204.2–2014 (Public Health Inspection Methods – Part 2: Chemical Pollutants) |
| Brand | PPM (manufactured in UK) |
|---|---|
| Origin | United Kingdom |
| Model | HTV-M |
| Detection Principle | Electrochemical Sensor |
| Measurement Range | 0–30 ppm (max. 34 ppm) |
| Resolution | ≤0.01 ppm |
| Repeatability | ±2% of reading |
| Sampling Method | Integrated micro-pump with one-button aspiration |
| Response Time | ≤50 s |
| Operating Temperature | −40 to +128 °C |
| Relative Humidity Range | 0–100% RH |
| Temperature Accuracy | ±0.4 °C |
| Humidity Accuracy | ±3% RH |
| Battery | 3.6 V rechargeable Li-ion |
| Runtime | ~200 h continuous |
| Weight | 270 g |
| Brand | Riken |
|---|---|
| Origin | Japan |
| Model | FP-30MK2(C) |
| Detection Principle | Photometric Colorimetry (based on acetylacetone reaction) |
| Measurement Range | 0.000–0.50 mg/m³ (TAB No.008) |
| Resolution | 0.01 mg/m³ (TAB No.008) |
| Repeatability | ≤ ±7% of reading |
| Sampling Method | Pump-aspirated |
| Response Time | 900 s (15 min) for TAB No.009 |
| Operating Temperature | −10 to +40 °C |
| Operating Humidity | ≤90% RH (non-condensing) |
| Flow Rate | 0.5 L/min |
| Data Storage | 99 measurement records with timestamp |
| Power Supply | 4 × AA alkaline batteries |
| Battery Life | Approx. 12 h (at 20 °C, no backlight, no alarm) |
| Dimensions | 80 × 150 × 40 mm (W×H×D, excluding protrusions) |
| Weight | ~250 g (excluding batteries) |
| Brand | RIKEN KEIKI |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | TAB-008 / TAB-009 |
| Pricing | Upon Request |
| Detection Principle | Photometric Colorimetry |
| Sampling Method | Pump-Driven Active Inhalation |
| Flow Rate | 0.5 L/min |
| Measurement Range | 0.000–0.500 mg/m³ (TAB-008) |
| Display Resolution | 0.01 mg/m³ (TAB-008) |
| Integration Time | 1800 s (30 min) for TAB-008 |
| Pack Size | 20 strips per pack |
| Brand | Interscan |
|---|---|
| Origin | USA |
| Model | 8160 |
| Detection Principle | Electrochemical Sensor |
| Measurement Range | 0–20.00 ppm (0–2000 ppb) |
| Resolution | 0.01 ppm / 1 ppb |
| Repeatability | ±0.5% of reading |
| Accuracy | ±2% Rd + 0.01 ppm |
| Response Time | <60 s |
| Linearity Error | ±1.0% (24 h) |
| Zero Drift | ±1.0% (24 h) |
| Span Drift | ≤±2.0% (24 h) |
| Sampling Method | Continuous pump-suction |
| Display | LCD with real-time graphing and data logging |
| Analog Outputs | 4–20 mA and 0–2.5 V |
| Battery Life | Up to 8 h (rechargeable Li-ion) |
| Operating Environment | 0–45 °C, 0–90% RH |
| Dimensions | 140 × 210 × 254 mm |
| Weight | 2.95 kg |
| Enclosure | Anodized aluminum housing |
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