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| Product Name | GaoPin NGP40-M400 Portable multifunctional 4 in 1 Gas Detector | SMART SENSOR ST8900 Gas Detector |
| Product Price | In coming | $241.00 |
| Details | Details | |
| Model comparison | ||
| Usage Type | Portable | Portable |
| Gas Quantity | Multi-gas | Multi-gas |
| Sensor Principle | Electrochemical Catalytic Bead | Electrochemical Catalytic Bead |
| Sampling Method | Pumped | Diffusion |
| Detection gas | Ex O₂ CO H₂S | Ex O₂ CO H₂S |
| T90 Response Time | ≤20s | ≤10s |
| Explosion-proof | Ex ia (IS) | |
| IP Rating | IP65 | |
| Data Output | RS485 Wireless | |
| Parameter comparison | ||
| Detect gas | CO, H2S, O2, combustible gases | Oxygen/carbon monoxide/hydrogen sulfide/combustible gas |
| Range | CO: 0-1000ppm; H2S: 0-100ppm; O2:0-30% Vol; Combustible gas: 0-100% LEL | |
| resolution | CO: 1ppm; H2S: 0.01ppm; O2:0.01% Vol; Combustible gas: 0.1% LEL | |
| Detection principle | Electrochemistry and catalytic combustion | |
| detection accuracy | ≤±3%(F.S) | |
| linearity error | ≤±2% | |
| Sexual repeability | ≤±2% | |
| uncertainty | ≤±2% | |
| Response Time | T90≤20s | Moment |
| recovery time | ≤ 30 seconds | |
| Sensor life | Electrochemistry: 2~ 3 years; catalytic combustion: 3 years | |
| Operating environment | Temperature: -40 ℃~ + 70 ℃, Humidity: ≤ 10~ 95% RH, Built-in Filter can be used in high humidity or high dust environment | |
| sample temperature | -40 ℃~ + 70 ℃, optional high temperature sampling cooling filtrate handle, can detect the flue gas concentration of 400 degrees or higher temperature | |
| Temperature and humidity measurement (optional) | Temperature -40 ℃~ + 70 ℃, accuracy 0.5 ℃; Humidity 0~ 100% RH, accuracy 3% RH | |
| Power Supply | 3.6VDC, 4500mA large capacity rechargeable polymer battery | |
| display screen | 2.31 inch high definition color screen, LCD display | Segmented LCD |
| sampling method | Built-in pump suction measurement, flow 500 ml/min | |
| Alarm method | Sound and light alarm, vibration alarm, visual alarm, sound and light + vibration + visual alarm, shutdown alarm can be set | Sound, light and shock triple alarm, the alarm value can be set, and the alarm sound can reach 80 decibels |
| communication interface | USB (charging and communication), optional RS485 communication interface | |
| data storage | Standard 100,000 data storage capacity | |
| Protection Rating | IP65 | |
| Explosion-proof Type | Intrinsically safe | |
| Explosion-proof sign | Exia II CT6 | |
| dimensions | 160*70*28mm | |
| weight | 300g | 360g |
| Accessories | Temperature and humidity measurement function, 1.2m retractable sampling handle (1-10m hose, standard length 1m), high temperature sampling and cooling filtrate handle, high temperature and high humidity pretreatment system, humidity dust Filter multiple, lanyard | |
| Application | Petroleum, chemical industry, environmental protection, gas distribution, warehousing, flue gas analysis, air treatment and other occasions that require Portable rapid detection of gas concentration | |
