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| Alarm: | Sound, light, vibration |
| Battery: | 3.6 V 2300 mAh lithium polymer rechargeable battery operate time is about 12 h continuously charging time: 4 to 6 h |
| Degree of Protection: | IP-66 |
| Dimensions: | 205×75×32 mm |
| Battery shelf life: | About 20 hours (when using alkaline dry batteries) |
| Calibration: | CO2：0.04 % revise the zero point outdoors, O2：20.9 % revise the zero point outdoors |
| Detection accuracy: | CO2：± 30 % rdg (rdg = reading) and O2：± 3 % F.S. (F.S. = full scale) |
| Detection range: | CO2：0.04 to 5.00 % and O2：0.0 to 30.0 % |
| Charging time: | 4 to 6 h |
| Dimension (hand shake of gas pump): | 45 × 239 × 28 mm |
| Dimension (host machine): | 85 × 153 × 50 mm |
| Explosion proof grade: | Exia II CT3 |
| Detection Resolution: | 0.1ppm |
| Detection Uncertainty: | |
| Dimension: | 500 × 290 × 180 mm |
| Display: | OLED self-luminous with low power consumption, high brightness |
| Alarm mode: | Sound, light, vibration |
| Degree of protection: | IP66 |
| Detection principle: | Electrochemistry |
| Dimension: | 205 × 75 × 32 mm |
| Alarm mode: | Sound, light, vibration |
| Degree of protection: | IP66 |
| Detection principle: | Electrochemistry |
| Dimension: | 205 × 75 × 32 mm |
| Battery: | 4.2 V lithium battery, 1700 mA/h |
| Detection error: | ± 5 % F.S. |
| Detector gas: | Flammable gases, oxygen gas, toxic and harmful gases |
| Dimension: | 125 × 66 × 42 mm |
| Alarm mode: | Buzzer, red LED and alarm status prompt on the display, fault alarm, pump abnormal alarm, battery low battery alarm, shutdown alarm, fall alarm (optional) |
| Battery capacity: | 3.7 VDC, 10000 mA rechargeable polymer battery with overcharge, over discharge, over voltage, short circuit protection |
| Charging interface: | Micro-USB charging interface is designed to be charged anytime, anywhere with common data lines and mobile power |
| Communication: | Output RS232, RS485 signal; with PC software to download, store, analyze, print data (optional) |
| Alarm mode: | Buzzer, light and alarm status prompt on the display, low battery alarm |
| Battery capacity: | 3800 mAh rechargeable lithium battery |
| Charging interface: | Micro USB charging interface |
| Communication and data download: | It can be directly connected to the computer via USB to quickly download TXT storing data; optional PC software can convert TXT documents to an Excel document |