| Model Number | 
                                Technology Gas | 
                                Dimension | 
                                Working Condition (Ensure accuracy) | 
                                Measurement  Range | 
                                Output | 
                                Feature Spotlight | 
                            
                        
                        
                        
                            
                                | 
                                    
                                    
                                     Industrial Grade CO2 Sensor  SRH Series 
                                    SRH-A Series 
                                 | 
                                
                                    NDIR CO2 | 
                                
                                     
	¢20mm*19mm  
 
                                 | 
                                 | 
                                0~5000ppm   0~1% Vol   0~2% Vol    0~5% Vol  0~10% Vol    0~20%Vol | 
                                
                                    
	 
	
		UART-TTL
	 
	
		Analog output
	 
	
		(0.4-2V)
	 
 
 
	 
 
                                 | 
                                
                                     
	Matrix calibration to ensure high accuracy over  full temperature   
 Innovative high humidity alert mechanism  
 Resistant to cross interference  
 Long lifespan of 10 years 
 
                                    
                                        
                                             
                                        
                                     
                                 | 
                                
                                     
                                        Specifications
                                        Features
                                     
                                    
                                        
                                            
                                                - Dimension
 
                                            
                                            
	¢20mm*19mm  
  
                                         
                                        
                                            
                                                - Working Condition
 (Ensure accuracy) 
                                            
                                            
                                         
                                        
                                            
                                                - Measurement 
 Range 
                                            
                                            - 0~5000ppm 
  0~1% Vol   0~2% Vol    0~5% Vol  0~10% Vol    0~20%Vol 
                                         
                                        
                                            
                                                - Output
 
                                            
                                            
	 
	
		UART-TTL
	 
	
		Analog output
	 
	
		(0.4-2V)
	 
 
 
	 
  
                                         
                                     
                                    
                                     
                                 | 
                            
                            
                        
                            
                                | 
                                    
                                    
                                     Industrial Grade CO2 Sensor  SRH Series 
                                    SRH-B Series 
                                 | 
                                
                                    NDIR CO2 | 
                                
                                     
	¢20mm*16.6mm  
 
                                 | 
                                 | 
                                0~5000ppm   0~1% Vol   0~2% Vol    0~5% Vol  0~10% Vol    0~20%Vol | 
                                
                                     
	UART-TTL
 
	Analog output
 
	(0.4-2V)
 
	 
 
                                 | 
                                
                                     
	Matrix calibration to ensure high accuracy over  full temperature   
 Innovative high humidity alert mechanism  
 Resistant to cross interference  
 Long lifespan of 10 years 
 
                                    
                                        
                                             
                                        
                                     
                                 | 
                                
                                     
                                        Specifications
                                        Features
                                     
                                    
                                        
                                            
                                                - Dimension
 
                                            
                                            
	¢20mm*16.6mm  
  
                                         
                                        
                                            
                                                - Working Condition
 (Ensure accuracy) 
                                            
                                            
                                         
                                        
                                            
                                                - Measurement 
 Range 
                                            
                                            - 0~5000ppm 
  0~1% Vol   0~2% Vol    0~5% Vol  0~10% Vol    0~20%Vol 
                                         
                                        
                                            
                                                - Output
 
                                            
                                            
	UART-TTL
 
	Analog output
 
	(0.4-2V)
 
	 
  
                                         
                                     
                                    
                                     
                                 | 
                            
                            
                        
                            
                                | 
                                    
                                    
                                     NDIR CO2 Sensor SRH-40 
                                    SRH-40 
                                 | 
                                
                                    NDIR CO2 | 
                                
                                     
	¢20mm*16.6mm 
 
                                 | 
                                 | 
                                0-40%vol | 
                                
                                    
                                 | 
                                
                                     
	High concentration range to fit for agricultural application  
 Smart algorithm to fulfill low power consumption  
 Long lifespan of 10 years 
 
                                    
                                        
                                             
                                        
                                     
                                 | 
                                
                                     
                                        Specifications
                                        Features
                                     
                                    
                                        
                                            
                                                - Dimension
 
                                            
                                            
	¢20mm*16.6mm 
  
                                         
                                        
                                            
                                                - Working Condition
 (Ensure accuracy) 
                                            
                                            
                                         
                                        
                                            
                                                - Measurement 
 Range 
                                            
                                            - 0-40%vol
 
                                         
                                        
                                            
                                                - Output
 
                                            
                                            
                                         
                                     
                                    
                                     
                                 | 
                            
                            
                        
                            
                                | 
                                    
                                    
                                     Electrochemical CO Sensor ECO-5011 
                                    ECO-5011 
                                 | 
                                
                                    Electrochemical CO | 
                                
                                     
	¢13.8mm*50.75mm 
 
                                 | 
                                 | 
                                0~10000ppm | 
                                
                                    
                                 | 
                                
                                     
	Best-in-class cross interference   
 High linear output characteristics for CO measurement  
 Long life span   
 UL2034, EN50291 and ROHS compliance 
 
                                    
                                        
                                             
                                        
                                     
                                 | 
                                
                                     
                                        Specifications
                                        Features
                                     
                                    
                                        
                                            
                                                - Dimension
 
                                            
                                            
	¢13.8mm*50.75mm 
  
                                         
                                        
                                            
                                                - Working Condition
 (Ensure accuracy) 
                                            
                                            
                                         
                                        
                                            
                                                - Measurement 
 Range 
                                            
                                            - 0~10000ppm
 
                                         
                                        
                                            
                                                - Output
 
                                            
                                            
                                         
                                     
                                    
                                     
                                 |