ZZC
| order number | general rules | qualification |
| 1 | use | Gas or oxygen detection alarm device |
| 2 | working temperature | -20℃~ +50℃ |
| 3 | Working humidity | 5~95%RH (non-condensing) |
| 4 | type | Single gas detection and alarm instrument |
| 5 | Detection of gas types | Gas or oxygen |
| 6 | Sensor type | Electrochemical, sensor replaceable, life of more than 2 years |
| 7 | accuracy | ±2ppm |
| 8 | reaction time | Less than 10 seconds |
| 9 | Audio alarm | 95dB/10cm |
| 10 | Video alarm | The High-strength LED lamp is flashing |
| 11 | vibration alarm | standard layout |
| 12 | source | Replacement lithium battery, 3 years |
| 13 | sample mode | Diffuse sampling |
| 14 | self-checking | Anti-poisoning technology used in the startup circuit, LCD display, software self-inspection and sensor self-inspection |
| 15 | zero setting | Only press the on / off button twice to set zero automatically |
| 16 | calibration | Automatically calibration, the calibration interval was extended to 12 months using an attenuation compensation battery |
| 17 | classification of waterproof | IP 54 |
| 18 | Instrument menu function | Automatic zero setting, automatic calibration, peak recording, and display of battery power. |
| 19 | Alarm method | Secondary alarm, alarm point adjustable, audio: 95dB / 10cm; video: red alarm light flashing; vibration alarm. |
| 20 | Appearance size | 93（H）*50(W)*27(D)mm |
| 21 | weight | Gas 81.5g, oxygen 93.0g |
| 22 | Explosion-proof type | This Ann type |
| 23 | anti-hazard classification | North America: Class1, Div1, Groups A, B, C, D, T4 (UL / c UL); |
| 24 | Vibration and impact resistance test | China: EEx ia ⅡB T4 (CENELEC) 2G EEx ia d ⅡC T4 (ATEX); China Metrology certification;" |
| 25 | stability | Compliance with GB 12358-90 |
