4-20mA current type ammonia tester
								Type:KD2130M-NH3
								 
								 
								 
							 
								
								 
 
								
								RS485 interface carbon monoxide tester
								Type:KD2130M-CO
								 
								 
								 
							 
								
								 
 
								
								RS485 interface dust tester
								Type:KD2130M-PM25
								 
								 
								 
							 
								
								 
 
								
								4-20mA current type carbon dioxide tester
								Type:KD2130M-CO2
								 
								 
								 
							 
								
								 
 
								
								4-20mA current type carbon dioxide tester
								Type:KD2130M-CO2
								 
								 
								 
							 
								
								 
 
								
								4-20mA current type oxygen tester
								Type:KD2130M-O2
								 
								 
								 
							    
						  
						 
								 
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