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Contact Supplierwe are offering 4 gas detector used for petrochemical industry co, h2s, o2, ch4.
model no.
dsw4
measuring range
ch4: (0.00—5.00)%vol
lel: (0 ~ 100)%lel
o2: (0~30.0)%vol, (0~100)%vol
h2s: (0 ~ 100)ppm
co: (0~1000) ppm
resolution ratio
ch4: 0.01%vol
lel: 1%lel
o2: 0.1%vol
h2s:1ppm
co: 1ppm
display liquid
crystal display(lcd)
response time
ch4: ≤20s ( t90 )
lel: ≤20s ( t90 )
o2: ≤35s(t90)
h2s: ≤45s ( t90 )
co: ≤45s (t90)
alarm way
sound, lightaudible & visual
alarm sound & light
≥75db; ≥20m visible
alarm point
can be set in full proceed
continuous working time
≥12hours
working current
95ma
sensor lifetime
≥2year( co, o2, h2s )
≥1year( lel,ch4 )
battery model
pl123450
charging time
4-5 hours
protection degree
ip65
size & weight
130*66*30mm, 500g.