Portable two-parameter detection alarm 

 Portable methane / oxygen detection alarm, portable methane / carbon monoxide detector alarm device 
 Application of places: 
 Underground coal mines, petrochemical, metallurgy, chemical industry, municipal gas and other places-site testing. 
 Product Features: 
 Methane, oxygen, or methane, carbon monoxide concentration detection. 
 Highly intelligent, easy to operate, stable and reliable. 
 The alarm can be set according to user requirements. 
 The two sound and light alarm. 
 High clear mission of digital display. 
 Undervoltage alarm. 
 Instrument the name of a pocket of methane / oxygen detection alarm 
 Fixed loan model CJY4/25 CJT4/100 
 Measurement of the gas methane (CH4) oxygen (O2) 
 Measurement range CH4: 0 to 4.00% of CH4, O2: 0 ~ 25% of the VOL 
 Measurement accuracy of CH4: ± 10%, O2: ± 0.7% VOL 
 Alarm set point CH4: 1.00% CH4, 2.00% CH4 
 O2: 18.0% VOL 
 Resolution of 0.01% CH4, 0.1% VOL 
 The measuring principle of catalytic combustion sensor (CH4) electrochemical sensors (CO, O2,) 
 Measurement of diffusion measurement methods 
 Low battery alarm function of low battery voltage alarm 
 Display and sound and light alarm highlighted figures show that the alarm sound level 80dB 
 Electrochemical sensor life of more than 2 years 
 Full charge continuous work time is greater than 10:00 
 Power 3.6V rechargeable battery 
 Temperature / Humidity 0 ~ 40 ° C / ≤ 98% 
 Size / Weight 135 (L) x 50 (W) × 25 (H) mm/200g 
 Explosion-proof the type ibdI (150 ° C) shock antistatic ABS chassis 
 Standard configuration host, charger, leather case, manual, qualified products, warranty card 
 Contact person: HUANG Hai-fixed telephone :0537-2608605 
 Mobile: 18,766,872,840: 1,093,569,830. 
 Want: zhongmaojx8899 
 Company Website: http://zhongmeijy001.jdol.com.cn/