Hebei Nuo'an Technology Co,.Ltd provides wall-mount gas leak detectors for monitoring various gases. The NA-GD-30 model is a stainless steel, explosion-proof gas detector that can monitor up to 16 different gas types including oxygen, combustible gases, carbon monoxide, hydrogen sulfide and others. It has an electrochemical detection principle, two-stage alarms, infrared control and is suitable for use in industries like petrochemical, chemical, and coal mining where toxic gases may be present.

1. Hebei Nuo'an Technology Co,.Ltd.
YOURYOUR SECURITYSECURITY ISIS MYMY PROMISEPROMISE
Address: No.319 Xiangjiang Road,Shijiazhuang Economic & Technological Development
Zone,Hebei Province,China Zip code:050000
Contact:Snowden.Dong Cell phone # & Whatsapp:8615373631559
Tell:+86-311-85058333 Fax:+86-311-85968011-809
Mailbox:dxfy40@163.com Skype: snowden.dong
Wall-Mount Workplace Gas Leak Alarm Detector
Monitor Explosion-proof Detector
Brand Name Nuo’an Model # NA-GD-30 Net Weight 1600 Grams
Packing by Carton Material Stainless Steel Color Blue & Yellow
Details a.Being compatible with all kinds of controlled alarms, PLC, DCS and other
control system, can be remote monitored.
b. Explosion-proof design, fast, reliable and stable. Explosion-proof grade: Ex
dⅡCT6
c. With self-calibration function, and three standard keys will be used to realize
on-site maintenance.
d. Monitor the gas concentration in environment or pipeline and alarm.
e. Two-stage alarm with sound and light, alarm point is settable.
f. Infrared ray controller can remote control alarm point settings, zero calibration,
and address modification.
Application a.It is extensively used in petroleum, petrochemistry, chemical industry,
gas, coal mine, metallurgy and power system;safety detection in
municipal administration, communication and traffic tunnel
construction; electronics and semiconductor industry, animal husbandry,
biogas plant & biogas digester and other places where toxic and harmful
gases exist.

2. Hebei Nuo'an Technology Co,.Ltd.
YOURYOUR SECURITYSECURITY ISIS MYMY PROMISEPROMISE
Address: No.319 Xiangjiang Road,Shijiazhuang Economic & Technological Development
Zone,Hebei Province,China Zip code:050000
Contact:Snowden.Dong Cell phone # & Whatsapp:8615373631559
Tell:+86-311-85058333 Fax:+86-311-85968011-809
Mailbox:dxfy40@163.com Skype: snowden.dong
Technical
Data
Gas Detected As Below List
Detection principleElectrochemistry
Install Method Wall-mounted, piping type, flow-type(according to the detected
environment)
Measure Range 0-100ppm, 0-200ppm, 0-1000ppm, 0-100%LEL
Resolution 0.1ppm, 1ppm, 1%LEL
Precision ≤± 3% F.S.
Response Time ≤10S Recovery
Time
≤10S
Repeatability ≤±1% Linearity error ≤±1%
Zero shift ≤±1%(F.S/year) Display High light nixie
tube display
Connection mode G1/2 external thread
explosion-proof flexible pipe
Thread size M45*2mm
Temperature -40℃~70℃ Humidity 0-95%RH
Explosion-Proof Ex dⅡCT6 Degree of
protection
IP65
Alarm mode Sound, light Operating
time
24h
Dimensions 180*150*90mm Weight ≤1.6kg
FOB China 200USD per Detector + 100USD
Per Monitor Channel
Payment
Term
L/C, T/T, Western Union,
Money Gram
MOQ 1 Set Sample &
Courier fee
Need pay and discount when
you order more than 50 cartons

3. Hebei Nuo'an Technology Co,.Ltd.
YOURYOUR SECURITYSECURITY ISIS MYMY PROMISEPROMISE
Address: No.319 Xiangjiang Road,Shijiazhuang Economic & Technological Development
Zone,Hebei Province,China Zip code:050000
Contact:Snowden.Dong Cell phone # & Whatsapp:8615373631559
Tell:+86-311-85058333 Fax:+86-311-85968011-809
Mailbox:dxfy40@163.com Skype: snowden.dong
The gas types can be detect and parameters
Gas Type Measuring
Range
Display
Error
Minimum
reading
Minimum
alarm value
Response time
Oxygen / O2 0-30% Vol <±3% FS 0.1% Vol 19.5% Vol ≤10 Seconds
Combustible gas 0-100% LEL <±3% FS 1% LEL 20% LEL ≤10 Seconds
Carbon monoxide /
CO
0-999 ppm <±3% FS 1 ppm 50 ppm ≤10 Seconds
Hydrogen sulfide
/H2S
0-100 ppm <±3% FS 1 ppm 10 ppm ≤10 Seconds
Sulfur dioxide/SO2 0-100 ppm <±3% FS 0.1 ppm 10 ppm ≤10 Seconds
Nitric Oxide / NO 0-250 ppm <±3% FS 1 ppm 10 ppm ≤10 Seconds
Nitrogen dioxide/NO2 0-20 ppm <±3% FS 0.1 ppm 5 ppm ≤10 Seconds
Chlorine / Cl2 0-20 ppm <±3% FS 0.1 ppm 5 ppm ≤10 Seconds
Ammonia/NH3 0-100 ppm <±3% FS 1 ppm 10 ppm ≤10 Seconds
Hydrogen/H2 0-999 ppm <±3% FS 1 ppm 50 ppm ≤10 Seconds
Hydrogen cyanide
/HCN
0-50 ppm <±3% FS 0.1 ppm 5 ppm ≤10 Seconds
Hydrochloric acid
/ Hcl
0-20 ppm <±3% FS 0.1 ppm 5 ppm ≤10 Seconds
Phosphine/PH3 0-20/999 ppm <±3% FS 0.1/1 ppm 5/100 ppm ≤10 Seconds
Ozone/O3 0-20 ppm <±3% FS 0.01 ppm 5 ppm ≤10 Seconds
Chlorine Dioxide
/ ClO2
0-20 ppm <±3% FS 0.1 ppm 5 ppm ≤10 Seconds
Ethylene Oxide
/C2H4O
0-100 ppm <±3% FS 0.1 ppm 10 ppm ≤10 Seconds