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1. Using optical interference principle, it can real-timely detect the methane concentration in ambient air.
| Model Item |
Specification | |||||||
| CJG10 | CJG100 | |||||||
| Measurement range | (0~10)%CH4 | (0~100)%CH4 | ||||||
| 0~1 | 1~4 | 4~7 | 7~10 | 0~10 | 10~40 | 40~70 | 70~100 | |
| Intrinsic error | ±0.05 | ±0.1 | ±0.2 | ±0.3 | ±0.5 | ±1 | ±2 | ±3 |
| Minimum division value of eyepiece reticle | 0.5% | 5% | ||||||
| Division range of micrometer dial | (0-1)% | (0-10)% | ||||||
| Minimum division value of micrometer dial | 0.02% | 0.2% | ||||||
| Explosion-proof mark | Exib I | |||||||
| Light source (bulb) | 2.5V/0.3A | |||||||
| Power Supply | 2 ×R20(Zn-Mn) | |||||||
| Dimensions | 218×123×65mm | |||||||
| Weight | 1.8Kg | |||||||
| Standard configuration | Detector, protective cover(leather case), balloon set, absorption tube set, bulb, rubber hose(1500mm),ballpoint pen, thermometer, battery. |





We mainly export products of three categories:
1. Mining underground rescue product
2. Mining explosion-proof lamp
3. Mining explosion-proof instrument and meter
Our main products:
1. Mining self-rescuer
2. LED miner's cap lamp
3. LED Flame-proof laneway lamp
4. Mechanical and electronic anemometer
5. Isolated positive pressure oxygen breathing apparatus
6. Automatic resuscitator
7. Optical interference type methane detector
8. Portable multi-parameter gas detector
9. Infrared thermometer
10. Laser distance meter
11. Laser guider
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OUR WORKSHOP
EXHIBITION
CONTACT INFORMATION
Shaanxi ASTTAR Explosion-proof Safety Technology Co., Ltd.
Add: No.3699 Shangyuan Road, Caotan Ecological Industrial Park, E&T Developing Zone, Xi'an, China, 710021.