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DESCRIPTION
Sensitive material of MQ-7 gas sensor is SnO2, which with lower conductivity in clean air. It makedetection by method of cycle high and low temperature, and detect CO when low temperature (heatedby 1.5V). The sensor’s conductivity is more higher along with the gas concentration rising. When hightemperature (heated by 5.0V), it cleans the other gases adsorbed under low temperature. Please usesimple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
Features:
Brand new and high quality.
Mainly used for CO collection detection in family, factory, underground operation.
Detection Zone:10 to 1000ppmm.
Characteristic Gas:100ppmm co.
Sensitive Resistance:2K? to 20K? in 100ppm co.
Sensitivity:?3%.
Response Time:?1s.
Recovery Time:?30s.
Heating Resistance:31?±3?.
Heating Current:?180mA.
Heating Voltage:5.0V±0.2V /1.5±0.1V.
Heating Power: about 350mW.
Conditions:******t Temperature:-20??+50?.
Humidity:?95%RH.
Oxygen Content:21% .
Size: 3.5cm X 2.2cm – 1.4inch x 0.9inch.
Contact us:
T (+63) 02 577 8214
M (GLOBE) (+63) 995 629 48 43
M (SMART) (+63) 949 966 59 73
Email: [email protected]
Facebook: EDW ElecDesignWorks
Website: www.elecdesignworks.com
Address: 2nd flr. CW Arcade Bldg., #20 Alcalde Jose St. Brgy Kapasigan Pasig City, Philippines 1600
This seller has been a member since: May. 28, 2015
Member Location:
Total Classifieds: 650
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