１
７ ｗｗｗ．ｘｉｎｔｅｓｔ．ｃｏｍ．ｃｎ
ｗｗｗ．ｈｙｔｅｃｈｃｎ．ｃｏｍ．ｃｎ
８
Carbon dioxide grading guidance
Non mandatory reference grading
a) 250-350ppm---general outdoor air level;
b) 350-1,000ppm---the typical value for resident
space with good ventilation;
c) 1,000-2,000ppm---the air grade insufficient oxygen,
sleepy, it is enough to cause complaint.
d) 2,000—5,000ppm---the air grade of stasis, obsolescence
and sweltering air grade; make people
headache, sleepy accompanied with
loss of concentration, attention distracted,
quick heart beat and slight nausea.
e)
＞
5,000ppm---serious anoxia may be resulted in if exposed
into it, lead to permanent brain damage,
coma or even death.
Product parameters
Power supply: 3.7V lithium battery
Record mode: manual measurement, immediate measurement
Record storage: 12700
Response time: 1 second
Carbon dioxide measurement scope: 0
～
9999PPM
Accuracy: ±70ppm±3%readings (0
～
5000)
Resolution: 1PPM
Temperature measurement scope: -10
～
70
℃
(14
～
158
℉
)
Resolution: 0.1
℃
/
℉
Temperature measurement accuracy: ±0.3
℃
(10
～
55
℃
)
Others are ±1.2
℃
Humidity measurement scope: 0% RH
～
99.9%RH
Resolution: 0.1%
Accuracy: ±3 %( 10
～
90%)
Work condition: 0
～
50
℃
, 0
～
85%RH (no condensation)
Storage condition: -20
～
60
℃
, 0
～
90%RH (no condensation)
