| Measurement range | 0 ppm ∼ 5 ppm | 
                                                                            
                                            | Resolution | 0.001 ppm ( 0 ppm ∼ 5 ppm ) | 
                                                                            
                                            | Temperature range | ˗ 40 °C ∼ 120 °C | 
                                                                            
                                            | Humidity range | 0 % ∼ 100 % RH | 
                                                                            
                                            | Detection accuracy | ≤ ± 3 % | 
                                                                            
                                            | Response time | ≤ 60 s (T80) | 
                                                                            
                                            | Release time | ≤ 60 s | 
                                                                            
                                            | Linearity error | ≤ ± 1 % | 
                                                                            
                                            | Zero drift | ≤ ± 1 % ( F.S/Year ) | 
                                                                            
                                            | Operating temperature | ˗ 30 °C ∼ 60 °C | 
                                                                            
                                            | Operating humidity | ≤ 95 % , non-condensing | 
                                                                            
                                            | Working pressure | ˗ 30 kPa ∼ 200 kPa | 
                                                                            
                                            | Display resolution | 320 x  240 | 
                                                                            
                                            | Power supply | 4000 mA Lithium-ion battery | 
                                                                            
                                            | Dimensions | 165 x 80 x 30 mm | 
                                                                            
                                            | Net weight | 0.5 kgs | 
                                                                    
                            
                         
                                            
                            
                                                                        -  2.6 inch IPS color screen for digital display of detected ozone concentration
 
-  Real time detection mode
 
-  Provision to switch between ppm and mg/m3
 
-  Over-voltage protection, overcharge protection, resistance to static and electromagnetic interference
 
-  Excess count limit alarm
 
-  Built-in suction pump: can work in micro-negative-pressure environment
 
-  Large memory storage ( 16000 samples )
 
-  On-screen historical data viewing
 
-  Easy data download and export via USB
 
-  Built-in rechargeable battery with ultra-long standby time
 
                                            
                            Used in chemical industry, health and safety monitoring, ozone process control, personal exposure monitoring, source and leak detection; used to measure ozone concentrations in operation limited places pipelines, tunnels, etc.