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Gas Range Price Product Name SKU
CO 200 ~ 10000 ppm $6.9 Grove - Gas Sensor (MQ2) 101020055
0.05 ~ 10 ppm $6.9 Grove - Gas Sensor (MQ3) 101020006
200 ~ 10000 ppm $6.9 Grove - Gas Sensor (MQ5) 101020056
20 ~ 200 ppm $7.5 Grove - Gas Sensor (MQ9) 101020045
0 ~ 1000 ppm $39.9 Grove - Multichannel Gas Sensor 101020088
Alcohol 100 ~ 2000 ppm $6.9 Grove - Gas Sensor (MQ2) 101020055
0.05 ~ 10 ppm ppm $6.9 Grove - Gas Sensor (MQ3) 101020006
200 ~ 10000 ppm $6.9 Grove - Gas Sensor (MQ5) 101020056
20 ~ 1000 ppm $7.9 Grove - Alcohol Sensor 101020044
10 ~ 500 ppm $39.9 Grove - Multichannel Gas Sensor 101020088
Propane > 1000 ppm $39.9 Grove - Multichannel Gas Sensor 101020088
200 ~ 5000 ppm $6.9 Grove - Gas Sensor (MQ2) 101020055
CH4 5000 ~ 20000 ppm $6.9 Grove - Gas Sensor (MQ2) 101020055
0.05 ~ 10 ppm $6.9 Grove - Gas Sensor (MQ3) 101020006
200 ~ 10000 ppm $6.9 Grove - Gas Sensor (MQ5) 101020056
500 ~ 10000 ppm $7.5 Grove - Gas Sensor (MQ9) 101020044
>1000 ppm $39.9 Grove - Multichannel Gas Sensor 101020088
O2 0 ~ 25% VOL $59 Grove - Gas Sensor (O2) 101020002
HCHO 5 ~ 40 ppm $14.9 Grove - HCHO Sensor 101020001
Dust 0 ~ 8000 pcs/0.01cf $15.9 Grove - Dust Sensor 101020012
LPG 200 ~ 5000 ppm $6.9 Grove - Gas Sensor (MQ2) 101020055
0.05 ~ 10 ppm $6.9 Grove - Gas Sensor (MQ3) 101020006
20 ~ 10000 ppm $6.9 Grove - Gas Sensor (MQ5) 101020056
500 ~ 10000 ppm $7.5 Grove - Gas Sensor (MQ9) 101020045
Butane 3000 ~ 5000 ppm $6.9 Grove - Gas Sensor (MQ2) 101020055
Hexane 0.05 ~ 10 ppm $6.9 Grove - Gas Sensor (MQ3) 101020006
Benzine 0.05 ~ 10 ppm $6.9 Grove - Gas Sensor (MQ3) 101020006
Smoke 200 ~ 10000 ppm $6.9 Grove - Gas Sensor (MQ2) 101020055
NO2 0.05 ~ 10 ppm $39.9 Grove - Multichannel Gas Sensor 101020088
H2 300 ~ 5000 ppm $6.9 Grove - Gas Sensor (MQ2) 101020055
200 ~ 10000 ppm $6.9 Grove - Gas Sensor (MQ5) 101020056
1 ~ 1000 ppm $39.9 Grove - Multichannel Gas Sensor 101020088
NH3 1 ~ 500 ppm $39.9 Grove - Multichannel Gas Sensor 101020088
Iso-butane > 1000 ppm $39.9 Grove - Multichannel Gas Sensor 101020088
CO2 0 ~ 2000 ppm $99.9 Grove - CO2 101020067


And sometimes, we want to test many gases in one sensor, so how should we choose it ?

Gas SKU Price Measurable Gases Range
Grove - Multichannel Gas Sensor 101020088 $39.9 CO 0 ~ 1000 ppm
Alcohol 10 ~ 500 ppm
CH4 > 1000 ppm
Propane > 1000 ppm
NO2 0.05 ~ 10 ppm
NH3 1 ~ 500 ppm
Iso-butane > 1000 ppm
H2 1 ~ 1000 ppm
Grove - Gas Sensor (MQ2) 101020055 $6.9 CO 200 ~ 10000 ppm
Alcohol 100 ~ 2000 ppm
CH4 5000 ~ 20000 ppm
Propane 200 ~ 5000 ppm
LPG 200 ~ 5000 ppm
Butane 3000 ~ 5000 ppm
Smoke 200 ~ 10000 ppm
H2 300 ~ 5000 ppm
Grove - Gas Sensor (MQ3) 101020006 $6.9 CO 0.05 ~ 10 ppm
Alcohol 0.05 ~ 10 ppm
CH4 0.05 ~ 10 ppm
Hexane 0.05 ~ 10 ppm
LPG 0.05 ~ 10 ppm
Benzine 0.05 ~ 10 ppm
Grove - Gas Sensor (MQ5) 101020056 $6.9 CO 200 ~ 10000 ppm
Alcohol 200 ~ 10000 ppm
CH4 200 ~ 10000 ppm
LPG 200 ~ 10000 ppm
H2 200 ~ 10000 ppm
Grove - Gas Sensor (MQ9) 101020045 $7.5 CO 20 ~ 2000 ppm
CH4 500 ~ 10000 ppm
LPG 500 ~ 10000 ppm
Grove - Dust Sensor 101020012 $15.9 Dust 0 ~ 8000 pcs/0.01cf
Grove - Alcohol Sensor 101020044 $7.9 Alcohol 20 ~ 1000 ppm
Grove - Gas Sensor (O2) 101020002 $59 O2 0 ~ 25% VOL
Grove - HCHO Sensor 101020001 $14.9 HCHO 5 ~ 40 ppm
Grove - CO2 101020067 $99.9 CO2 0 ~ 2000 ppm