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combustible gas detctor1.Using advanced ultra-low-power 16-bit microcontroller
2.Cassette-type design: small and comfortable to carry.
3.Ultra-wide viewing angle, large-screen LCD display
4.Powered by large capacity rechargeable lithium-ion battery, ultra-long standby time
5.Battery voltage displaying
6.Modular sensors, easy to maintain
7.Auto-calibration function, reducing detection error
8.STEL and TWA alarm on toxic gas detect, each have a different sound and visual alarm
9.Password management capability. Important operations need password authentication
Specifications| Model | PGAS-21 |
| Measuring gas | Toxic gas (O2, CO, CL2, NH3, HCL, HCN, SO2 & etc) |
| Sampling method | Diffusion |
| Measuring principle | Electrochemical cell |
| Measuring range | Refer to ordering information |
| Response time | <30 sec / 90% scale |
| Accuracy | ±2% / Full scale |
| Alarm type | visual, sound, vibration |
| Measuring value display | LCD display (6 digit 8 seg) |
| Operating temperature | -20°C ~ +50°C |
| Operating humidity | 5 ~ 95%.RH (non-condensing) |
| Operating power | 4.2V rechargable lithium battery |
| Dimensions | 106x67x32 mm (L x W x H) |
| Net weight | 120g |
| Approval | IP65, Ex(ia) IIC T3 |
| Model | Measuring gas | Range | Preset Alarm Threshold |
| PGAS-21-O2-30 | Oxygen | 0-30% | LOW: 19.5%,HIGH: 22.5% |
| PGAS-21-CO-1000 | Carbon monoxide | 0-1000 PPM | 35 PPM |
| PGAS-21-CO-500 | Carbon monoxide | 0-500 PPM | 10 PPM |
| PGAS-21-H2S-100 | Hydrogen sulfide | 0-100 PPM | 10 PPM |
| PGAS-21-SO2-100 | Carbon dioxide | 0-100 PPM | 2 PPM |
| PGAS-21-CL2-50 | Chlorine | 0-50 PPM | 1 PPM |
| PGAS-21-HCN-30 | Hydrocyanic acid | 0-30 PPM | 4.7 PPM |
| PGAS-21-NO2-100 | Nitrate dioxide | 0-100 PPM | 2 PPM |
| PGAS-21-NH3-100 | ammonia | 0-100 PPM | 25 PPM |
| PGAS-21-PH3-5 | Phosphine | 0-5 PPM | 0.3 PPM |
| PGAS-21-O3-1 | Ozone | 0-1 PPM | 0.1 PPM |
| PGAS-21-NO-250 | Nitrate monoxide | 0-250 PPM | 25 PPM |
| PGAS-21-CLO2-1 | Chlorine dioxide | 0-1 PPM | 0.1 PPM |
PGAS-21 combustible gas detctor