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| Product Name | Bosean BH-4 Portable 4 in 1 Gas detection alarm instrument | HuiRuiPu HRP-B1000-4 Gas Detector |
| Product Price | In coming | $159.00 |
| Details | Details | |
| Model comparison | ||
| Usage Type | Portable | Portable |
| Gas Quantity | Multi-gas | Multi-gas |
| Sensor Principle | Electrochemical Catalytic Bead | Electrochemical Catalytic Bead |
| Sampling Method | Diffusion | Diffusion |
| Detection gas | Ex O₂ CO H₂S | Ex O₂ CO H₂S |
| T90 Response Time | ≤30s | ≤30s |
| Explosion-proof | Ex ia (IS) | |
| IP Rating | ||
| Data Output | ||
| Parameter comparison | ||
| Type | Portable | |
| Detect the amount of gas | A variety of gases | |
| Detection principle | Electrochemistry, catalytic combustion | |
| Detect gas | Hydrogen sulfide, carbon monoxide, oxygen, flammable gases | EX/O2/CO/H2S |
| sampling method | Diffusion Type (optional external sampling pump) | diffusion |
| Sensor | Supports more than 30 kinds of Sensors, flexible configuration, and can be customized according to customer needs. Default: EX, O2, H2S, CO four gases | |
| Range | EX: 0~100%LEL；O2: 0~30.0%vol；H2S: 0~100ppm；CO: 0~1000ppm | |
| accuracy | EX: 1%LEL, O2: 0.1%vol, H2S: 1ppm, CO: 1ppm | |
| detection error | ≤ +/- 2% FS (depending on Sensor) | |
| Concentration unit | PPM, mg/m3,% VOL,% LEL (switchable) | |
| Response Time | <30s | <30s |
| language display | Switch between Chinese and English | |
| display screen | 2.4 inch LCD display, resolution 320 * 240 | |
| Linear dispersion | Displays recent changes in gas concentration for comparative analysis | |
| Alarm feature | Alarm light: red LED flashing alarm, visible at ≥ 20 meters; alarm sound: buzzer alarm ≥ 75dB; vibration alarm | |
| Alarm method | Sound, light, vibration, display four ways | LCD display real-time data and system status, Light Emitting Diode, sound, vibration indication alarm, fault and underVoltage |
| Operating temperature | -20℃~50℃ | -20℃~50℃ |
| operating humidity | 0-95% RH (non-condensing, humidity greater than 90% RH needs to be equipped with filtrating drying cylinder) | |
| Power supply method | 3.7V rechargeable lithium battery, capacity 1800mAh | |
| charging time | Charging time is less than 7 hours, continuous work for more than 8 hours | 6h~8h |
| Sensor life | 2 years | 2 years |
| data storage | 500 sets of data storage | |
| data transmission | USB interface, with PC software, can query and export alarm record data | |
| password protection | With password protection and modification function (default password 0000) | |
| recovery operation | Support factory calibration and parameter setting functions | |
| Explosion-proof sign | Exib IIB T3 Gb | Ex ib IIB T3 Gb |
| shell material | ABS+PC | |
| dimensions | 145*69*28mm | 130*65*45mm |
| Indication Error | ≤5%FS | |
| Instruction method | LCD display real-time data and system status, Light Emitting Diode, sound, vibration indication alarm, fault and underVoltage | |
| weight | 400 g | 0.5kg |
| resolution | EX：1%LEL，H2S：1ppm，CO：1ppm，O2: 0.1%vol | 1%LEL/0.1%vol/1ppm/0.1ppm |
| Low alarm point | EX：20%LEL，H2S：10ppm，CO：50ppm，O2: 19.5%vol | |
| High alarm point | EX：50%LEL，H2S：35ppm，CO：150ppm，O2: 23.5%vol | |
