English 
Chinese 
Feature
1. Using imported high-precision electrochemical principles sensor
2. LCD dot matrix display technology, can display the type of gas, the gas unit, gas concentration values, measured maximum, local time, ambient temperature, etc.
3. Support Chinese and English operation interface, easy to switch
4. Gas concentration unit PPM, mg/m3 can quickly switch display
5. Built-in micro sampling pump, the pump suction size ten stalls adjustable
6. Explosion-proof certification, proof grade: Exia II CT4
Function
1. Monitoring of the environment, or the concentration of GAS in a confined space and give an alarm
2. With self-check function, zero calibration function, so that gas monitoring more accurate and reliable
3. One key to restore the factory settings, can be removed from misuse problems
4. With temperature and pressure compensation, to achieve the perfect, different temperature and pressure environment, the gas concentration compensation
5. Two sound and light alarm, alarm point can be set their own
6. Large-capacity lithium polymer rechargeable battery
7. Pump suction sampling, adjustable suction pump
8. Shell with high-strength special engineering plastics, non-slip, waterproof, dustproof, explosion
9. Exquisite upscale aluminum suitcase
Specifications
| Gas Detected | CO2 | ||
| Detection principle | Infrared principles | ||
| Sampling Method | Pump- suction, flow up 500ml/min, pump suction size ten stalls adjustable | ||
| Data logger | 100,000 sets of data can be stored, storage space available set, minimum 5S, can be browse | ||
| Measure Range | 0-2000\5000\10000\50000ppm;0-20%\100%VOL | ||
| Resolution | 1ppm;0.01%VOL | ||
| Precision | 3% FS | ||
| Response Time | ≤ 10S | ||
| Repeatability | ≤ ± 1% | ||
| Zero shift | ≤ ± 1% (F.S / Year) | ||
| Operating language | Support in English | ||
| Temperature | -20 ℃ ~ 50 ℃ | ||
| Explosion-Proof | Exia Ⅱ CT4 | ||
| Alarm mode | Sound, light, vibration | ||
| Dimensions | 205*75*32mm | ||
| Recovery Time | ≤ 10S | ||
| Linearity error | ≤ ± 1% | ||
| Display | LCD dot matrix display technology | ||
| Gas unit | Support for multiple gas unit switch display | ||
| Humidity | 0-95% RH | ||
| Degree of protection | IP66 | ||
| Operating time | 100 hours (off pump) | ||
| Weight(net/gross) | 300g/800g | ||
| Standard | 1 host computer, 1 USB data cable, 1 charging plug, 1 aluminum alloy packing box, 1 manual, 1 warranty card. | ||
| Optional | data download (EXCEL fromat) function, detachable needle, hose, holster, waterproof and dustproof filter, high temperature probe (up to 1100 degrees) | ||
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