| Sampling method | Diffusion | 
                                                                            
                                            | Measurement principle | Electrochemical (oxygen, toxic gases), Catalytic combustion (flammable gases), Infrared principle (carbon dioxide gas) | 
                                                                            
                                            | Detector gas | Flammable gases, oxygen gas, toxic and harmful gases | 
                                                                            
                                            | Response time | 
     
      | CO2 < 10 s |  
      | O2, flammable gases < 20 s |  
      | CO, H2S, SO2, NO, ClO2, NO2, H2 < 30 s |  
      | HCN, NH3, PH3 < 100 s |  | 
                                                                            
                                            | Detection error | ± 5 % F.S. | 
                                                                            
                                            | Explosion grade | Exia II CT3 | 
                                                                            
                                            | Operation mode | Touch push keys | 
                                                                            
                                            | Display | LCD display | 
                                                                            
                                            | Working temperature | -20 to 55°C | 
                                                                            
                                            | Environment humidity | 0 to 95 % RH (non-condensation) | 
                                                                            
                                            | Storage temperature | 0 to 40°C | 
                                                                            
                                            | Battery | 4.2 V lithium battery, 1700 mA/h | 
                                                                            
                                            | Power supply | Rechargeable lithium battery, continuous working up to 24 hours | 
                                                                            
                                            | Dimension | 125 × 66 × 42 mm | 
                                                                            
                                            | Weight | 105 g | 
                                                                            
                                            | HS Code | 9027100090 | 
                                                                    
                            
                         
                                            
                            
                                                                        -  Single gas detection unit
 
-  Display real time detection values 
 
-  Segment encoding LCD display 
 
-  Setting for Upper and Lower alarm limit as per requirement
 
-  Adjustable backlight brightness to save power 
 
-  Alarm beeps at different frequencies under different alarm conditions
 
-  Adjustable calibration concentration, facilitates user for calibration
 
-  Automatic battery detection (under voltage indication)
 
-  User can modify password to maintain privacy of test operations
 
                                            
                            
     
      | Accessories No. | Name | 
     
      | 1 | Calibration cup | 
     
      |  |  | 
    
                         
                                            
                            Used in petroleum, chemical, fuel processing industry, metal manufacturing plants, drug production plants.