Data sheet sensor MQ 136

HANWEI ELECTRONICS CO.,LTD

T ECH N I CAL

DAT A

MQ-136

http://www.hwsensor.com

MQ-1 3 6 GAS SEN SOR

FEAT U RES
Fast response and High sensitivity
Stable and long life
Simple drive circuit
APPLI CAT I ON
They are used in air quality control equipments for buildings/offices, are suitable for detecting of H2 S.
SPECI FI CAT I ON S
A. Standard work condition
Symbol

Vc
VH
RL
RH

Parameter name
Circuit voltage
Heating voltage
Load resistance
Heater resistance

TEL: 86-371-5333098 5333099

FAX: 86-371-5333090

Technical condition
5V± 0.1
5V± 0.1
can adjust
31

Remarks
AC OR DC
ACOR DC

E-mail: sensor@371.net

HANWEI ELECTRONICS CO.,LTD

MQ-136

http://www.hwsensor.com

sensitive components. The enveloped MQ-136 have 6 pin ,4 of them are used to fetch signals, and other 2 are used
for providing heating current.
Electric parameter measurement circuit is show n as Fig.2

E. Sensitivity characteristic curve

Fig.3 sensitivity characteristics of the MQ-136

SEN SI T V I T Y ADJ U ST M EN T
Resistance value of MQ-136 is difference to various kinds and various concentration gases. So, When
using this components, sensitivity adjustment is very necessary. we recommend that you calibrate the detector for
10ppm H2 S concentration in air and use value of Load resistance that( RL ) about 20 K

TEL: 86-371-65333098 65333099 FAX: 86-371-65333090

E-mail: sensor@371.net