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GRI 8404 Portable Combustible（Ex）Gas Detector

GRI 8404 Portable Combustible(electrochemical) gas detector is a kind of intellectual handheld alarm with high accuracy low consumption; detect the concentration of the toxic gas with advanced electrochemical technology in the target gases. 
GRI-8404 series is natural diffused gas detection way, the sensitive component adopt the toxic gas sensors imported Switzerland Membrapor electrochemical, with very high sensitivity and excellent repeatability; with a LCD display screen, can on line observe the concentration value of the target gas; can check the time 、Date and week, can output USB digital signal, communicate with monitor or PC; With two level alarm output, immediately start the light and sound alarm signal once exceed the preset point; with soft/hard two kind ways of calibration, can calibrate without off cap.
GRI-8402 series can be widely used in factory、office 、warehouse、mine and other varies environment field for toxic gas detection.

Feature:
Switzerland electrochemical sensor, stable and reliable performance;
External power supply DC5V, build-in rechargeable 3.7V Lithium batteries, chargeable on communication; 
Big screen LCD can display each parameter;
Can set and display time、date and week; 
Intellectual design, full function, zero, alarm set, convenient for calibration;
Small shell can be put in the pocket or bag, hang on body, convenient for carry;
Two level light and sound alarm, 4 height light LED when the alarm mark the attention of users;
with one way USB digital signal output.

Parameter:
Product Name:                  Combustible Gas alarm detector           
Sensor Name:            Optional (electrochemical sensor)
Product Model:            GRI-8404                 
Sensor Model:                  Optional (M series)
Battery Voltage:                3.7V (charge limit4.2V)   
Object detection:               Combustible Gas
Battery capacity:               600mAh                 
Detection principle:          Electrochemical 
Current consumption:       5-100mA                 
Detection method:            Diffused
Display way:            big LCD screen          
Detection range :              0-100%VOL
Alarm way :               Level light and sound alarm 
Accuracy :                          ±5%FS
Alarm error :              ≤±10% alarm setting value 
Resolution :               0.1%VOL
Operate temperature :      -10℃to -50 ℃         
Pre-warm time :           1 Min
Operate humidity:             0-95%RH                 
Responsible time:           T90≤30S（Majority）
Voltage range :           860-1060hpa         
Use life :                             2 years (on the air)
Signal output:           UART convert USB         
Zero drift:                            ≤±2%FS/6h 
Figure size:              102*60*35         
Span drift:           ≤±5%FS/6h
Machine weight:              ≤100g                 
Responsibility:          ≤±2%FS

Note: above part of sensor parameter please reference the technical manual of Membrapor of corresponding sensors