Specifications
| Detect gas | CO、O2、H2S、CH4、NH3 |
| Range | CO（0~1000ppm）、O2（0~30%vol）、H2S（0~100ppm）、CH4（0~100%LEL）、NH3（0~100ppm）、分 辨 率 |
| Sensors principle | Carbon monoxide, ammonia, hydrogen sulfide and oxygen use imported Electrochemical sensors, methane use imported catalytic combustion Sensors |
| Sampling method | pump suction |
| Display | 2.4 inch 320X240 high definition color screen display, 5 button operation |
| Detection Accuracy | ≤±3%（F.S） |
| Power Supply | DC3.6V |
| Alarm mode | Sound and light alarm, vibration alarm, visual alarm, sound and light + vibration + visual alarm, turn off alarm optional |
| Battery Capacity | 3.6VDC, 4500mA large Capacity rechargeable polymer battery, with overcharge, overdischarge, overVoltage, overheating, short circuit protection function |
| Operating Environment | Temperature -40 ℃~ + 70 ℃; Relative Humidity ≤ 0-99% 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 smoke concentration of 1300 degrees or higher temperature |
| Temperature measurement | -40 ℃~ + 120 ℃ (optional) Accuracy 0.3 ℃ |
| Humidity measurement | 0-100% RH (optional) Accuracy 2% RH |
| Data storage | Standard 100,000 data Capacity, support SD card storage, unlimited Capacity, support local real-time viewing, deletion or data export, free host computer communication software, storage function defaults to off state, can be set to open state, storage time interval can be set arbitrarily |
| Interface | USB (charging and communication), RS232, infrared communication, automatic identification |
| Operating language | Chinese or English can be set, the default Chinese interface |
| Explosion-proof method | Intrinsically safe |
| Explosion-proof sign | Exia II CT4 Ga |
| Protection level | IP65, rain and dust protection |
| Dimensions | 180*78*33mm |
| Weight | 350g |
Packing list
host x1, data cable x1, charger x1, 0.5-meter hose x1, manual X1, certificate x1, warranty card x1.
After-sales instructions
Warranty days: 365 days
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/29278/Specification.html , which is only used by users who purchase commodities from the NBCHAO.