Bosean BH-4S ATEX blue portable co h2s o2 EX multi gas detector 
       Description of Multi Gas Analyzer
  BH-4s portable multi gas detector could detect combustible gas, O2 and other two types toxic gases continuously and simultaneously. It is widely used in the area where explosion-proof is required or toxic gas leaks, like underground channels or mining industry, so as to protect the workers' life and avoid damage on the relevant equipments. 
   
  Parameters of Multi Gas Analyzer
   	 		 			|  			 Operating & Storage Environment  			 |  			 			 Temperature: -20°C~55°C (-4F~122F)  			Humidity: 5%-95% (Relative humidity non-condensing)  			Pressure: 95~110kPa  			 |  		
 		 			|  			 Sampling method  			 |  			 			 Diffusion type  			 |  		
 		 			|  			 Detecting Range  			 |  			 			 CO: 0~1000ppm  			H2S:0~100 PPM  			O2: 0~30%vol  			Combustible Explosive Gas (Ex / LEL / CH4): 0~100%LEL  			 |  		
 		 			|  			 Sensor  			 |  			 			 O2 /H2S / CO: plug-in electrochemical sensor  			 |  		
 		 			|  			 Alarm Type  			 |  			 			 low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm  			 |  		
 		 			|  			 Resolution  			 |  			 			 0.1%VOL (O2), 1ppm (CO), 0.1ppm (H2S), 1%LEL (EX)  			 |  		
 		 			|  			 Accuracy  			 |  			 			 3% F.S  			 |  		
 		 			|  			 Response time  			 |  			 			 10s  			 |  		
 		 			|  			 Repeatability  			 |  			 			 1%  			 |  		
 		 			|  			 Zero drift  			 |  			 			 1%  			 |  		
 		 			|  			 Data record  			 |  			 			 500 sets of data storage  			 |  		
 		 			|  			 Display  			 |  			 			 Alphanumeric large LCD displays the real time gas concentration and alarm stage  			 |  		
 		 			|  			 Backlight  			 |  			 			 Automatically activated when working in poor lighting environment or the alarm sounding or the button is knobbed down.  			 |  		
 		 			|  			 Self-checking Function  			 |  			 			 Self-checking Battery power, display, sensor, hardware failure  			 |  		
 		 			|  			 Explosion-proof  			 |  			 			 EXiaIICT4  			 |  		
 		 			|  			 Protection grade  			 |  			 			 IP65  			 |  		
 		 			|  			 Power Supply  			 |  			 			 Rechargeable lithium battery  			 |  		
 	 
   
   
              The gas detector is widely used in the area where explosion-proof is required or toxic gas leaks, like underground channels or mining industry, so as to protect the workers' life and avoid damage on the relevant equipments. 
                            industrial sensor fast response
             curve display papid analysis
                  
     Main Features of Multi Gas Analyzer
  1) Advanced MCU control with low power consumption
 2) Adjustable low and high alarm level
 3) Adjustable calibrating level
 4) High concentration protection for combustible gas
 5) Self test for the combustible gas sensor
  6) Low battery indication
 7) Replaceable sensor module
  8) Self-adjustment function
 9) Visual and audible alarm with vibration
 10) STEL and TWA alarming for toxic gases
 11) Advanced self-examination and self-renovation function
 12) Password management to avoid wrong operation
 13) Explosive proof housing
   
  Detailed Images of Multi Gas Analyzer
  
