| Sampling method | Diffusion | 
                                                                            
                                            | Sensor type | CO2: solid electrolyte sensor, O2:electrochemical sensor | 
                                                                            
                                            | Detection range | CO2:0.04 to 5.00 % and O2:0.0 to 30.0 % | 
                                                                            
                                            | Detection accuracy | CO2:± 30 % rdg (rdg = reading) and O2:± 3 % F.S. (F.S. = full scale) | 
                                                                            
                                            | Display resolution | CO2:0.01 % and O2:0.1 % | 
                                                                            
                                            | Calibration | CO2:0.04 %  revise the zero point outdoors, O2:20.9 % revise the zero point outdoors | 
                                                                            
                                            | Display | LCD display | 
                                                                            
                                            | Battery shelf life | About 20 hours (when using alkaline dry batteries) | 
                                                                            
                                            | Operation temperature | -10 to 50 °C | 
                                                                            
                                            | Operation humidity | < 90 % RH (non-condensation) | 
                                                                            
                                            | Power supply | #5 dry cell,  4/AC 100 to 250 V | 
                                                                            
                                            | Dimension Host Machine  (W*D*H) | 76 × 27 × 145 mm | 
                                                                            
                                            | Dimension Detector (W*D*H) | 28 × 27 × 170 mm | 
                                                                            
                                            | Weight | About 250 g (includes detector, batteries) | 
                                                                            
                                            | HS Code | 9027100090 | 
                                                                    
                            
                         
                                            
                            
                                                                        -  Equipped with two different types of sensors
 
-  Synchronous detection of two gases at a time
 
-  Long probe for narrow room
 
-  Small volume, Easy to carry
 
-  Automatic self calibration
 
                                            
                            Used in bio fuel plants, greenhouse, agriculture, construction, for on field testing of chemical gases and others.