~~NOCACHE~~
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^Type of \\ measurement ^Model^Power \\ voltage ^Measurement, range, accuracy^Communication^Note|
|{{anchor:ccs811}}{{:sensor:g.png|Gas sensor}} \\ <color blue> CO<sub>2</sub> \\ VOC </color>|Sciosense \\ **CCS811** {{ :sensor:ccs_811.png?100 |CCS811}}|**3.3V** \\ (1.8 .. 3.6V)|equivalent CO<sub>2</sub> (eCO<sub>2</sub>): 400 ppm .. 32768 ppm \\ equivalent Total Volatile Organic Compound (eTVOC): 0 ppb .. 29206 ppb.|[[com:basic_i2c|I²C]] \\ default address: **0x5A / 0x5B**|Standard (100kbit/s) and fast (400kbit/s) I²C interface \\ Power Consumption maximum: 46 mW|
|{{anchor:scd40}}{{:sensor:g.png|Gas sensor}}{{:sensor:t.png|Temperature measuring}}{{:sensor:h.png|Humidity measuring}} \\ <color blue> CO<sub>2</sub> \\ Air-quality \\ Temperature \\ Humidity </color>|Sensirion \\ **SCD40-D-R2** {{ :sensor:scd_40.png?100 |SCD40-D-R2}}|**3.3V / 5V** \\ (2.4 .. 5.5V)|CO<sub>2</sub> output range: 0 .. 40'000 ppm \\ CO<sub>2</sub> measurement accuracy: ± 40 ppm \\ Humidity measurement range: 0 %RH .. 100 %RH \\ Humidity measurement accuracy: ±6 %RH \\ Temperature measurement range: 10°C .. 60°C \\ Temperature measurement accuracy: ±1.5 °C|[[com:basic_i2c|I²C]] \\ default address: **0x62**|SCL clock frequency: 100 kHz|
|{{anchor:mq2}}{{:sensor:g.png|Gas sensor}}\\ <color blue>Smoke gas \\ Combustible gas</color>|Winsen \\ **MQ-2** {{ :sensor:mq_2.png?100 |MQ-2}}|**5V**|Flammable gas concentracion: 300 .. 10'000ppm \\ \\ Heater Resistance; RH: 29Ω ±3Ω（room tem.）\\ Heater consumption; PH: ≤950mW \\ Sensitivity;S: Ro(in air) / Rs (2000 ppm C<sub>3</sub>H<sub>8</sub>) ≥ 5 \\ Output Voltage;Vs: 2.5V～4.0V（in 2000 ppm C<sub>3</sub>H<sub>8</sub>）\\ Concentration Slope;α: ≤0.6 (R3000 ppm / R1000 ppm C<sub>3</sub>H<sub>8</sub>)|analog signal|Lifespan: 10 years \\ Preheat time: Over 24 hour|
|{{anchor:mq3}}{{:sensor:g.png|Gas sensor}}\\ <color blue> Alcohol gas \\ \\ </color><color orange> Small sensitivy:</color><color blue> Benzine gas </color>|Winsen \\ **MQ-3** {{ :sensor:mq_3.png?100 |MQ-3}}|**5V**|Detecting concentration scope：0.05 mg / 10 mg/L Alcohol \\ \\ Sensing Resistance: 1 MΩ - 8 MΩ (0.4 mg/L alcohol)|analog signal|Preheat time: Over 24 hour|
|{{anchor:mq4}}{{:sensor:g.png|Gas sensor}}\\ <color blue>CH<sub>4</sub> gas \\ Natural gas \\ LNG </color> \\ \\ <color orange>Small sensitivy:</color><color blue> \\ Alcohol \\ Smoke</color>|Winsen \\ **MQ-4** {{ :sensor:mq_4.png?100 |MQ-4}}|**5V**|Detecting concentration scope：200-10'000ppm CH<sub>4</sub>, natural gas \\ \\ Sensing Resistance: 10KΩ- 60KΩ (1000ppm CH<sub>4</sub>)|analog signal|Preheat time: Over 24 hour|
|{{anchor:mq5}}{{:sensor:g.png|Gas sensor}}\\ <color blue>LPG \\ Iso-butane \\ Propane </color> \\ \\ <color orange>Small sensitivy:</color><color blue> \\ Alcohol \\ Smoke</color>|Winsen \\ **MQ-5** {{ :sensor:mq_5.png?100 |MQ-5}}|**5V**|Detecting concentration scope：200-10'000ppm LPG,LNG, Natural gas, Iso-butane, Propane, Town gas \\ \\ Sensing Resistance: 10KΩ- 60KΩ (5000 ppm methane)|analog signal|Preheat time: Over 24 hour|
|{{anchor:mq6}}{{:sensor:g.png|Gas sensor}}\\ <color blue>Town gas \\ Natural gas \\ LPG \\ LNG \\ Iso-butane \\ Propane</color> \\ \\ <color orange>Small sensitivy:</color><color blue> \\ Alcohol \\ Smoke</color>|Winsen \\ **MQ-6** {{ :sensor:mq_6.png?100 |MQ-6}}|**5V**|Detecting concentration scope：200-10'000ppm LPG ,iso-butane, propane, LNG \\ \\ Sensing Resistance: 10KΩ- 60KΩ (10'00ppm LPG)|analog signal|Preheat time: Over 24 hour|
|{{anchor:mq7}}{{:sensor:g.png|Gas sensor}}\\ <color blue>CO</color>|Winsen \\ **MQ-7** {{ :sensor:mq_7.png?100 |MQ-7}}|**5V**|Detecting concentration scope：over 300 ppm CO (Carbon Monoxide)\\ \\ Sensing Resistance: 2KΩ- 20KΩ (100 ppm CO)|analog signal|Preheat time: Over 48 hour|
|{{anchor:mq8}}{{:sensor:g.png|Gas sensor}}\\ <color blue>H<sub>2</sub></color> \\ \\ <color orange>Small sensitivy:</color><color blue> \\ Alcohol \\ LPG \\ cooking fumes</color>|Winsen \\ **MQ-8** {{ :sensor:mq_8.png?100 |MQ-8}}|**5V**|Detecting concentration scope：100-10000ppm Hydrogen (H<sub>2</sub>)\\ \\ Sensing Resistance: 10KΩ- 60KΩ (1000 ppm H<sub>2</sub>)|analog signal|Preheat time: Over 24 hour|
|{{anchor:mq9}}{{:sensor:g.png|Gas sensor}}\\ <color blue>CO \\ CH<sub>4</sub> gas \\ LPG </color> |Winsen \\ **MQ-9** {{ :sensor:mq_9.png?100 |MQ-9}}|**5V**|Detecting range：\\ 20 ppm .. 2000 ppm carbon monoxide \\ 500 ppm .. 10'000 ppm CH<sub>4</sub> \\ 500 ppm .. 10'000 ppm LPG \\ \\ Sensing Resistance: 2KΩ- 20KΩ (100 ppm CH<sub>4</sub>)|analog signal|Preheat time: Over 48 hour|
|{{anchor:mq135}}{{:sensor:g.png|Gas sensor}}\\ <color blue>NO<sub>x</sub> \\ NH<sub>3</sub> \\ alcohol \\ Benzene \\ smoke \\ CO<sub>2</sub> </color> |Winsen \\ **MQ-135** {{ :sensor:mq_135.png?100 |MQ-135}}|**5V**|Detecting range：\\ 10 ppm .. 300 ppm NH<sub>3</sub> \\ 10 ppm .. 1000 ppm Benzene \\ 10 ppm .. 300 ppm Alcohol \\ \\ Sensing Resistance: 30KΩ- 200KΩ (100 ppm NH<sub>3</sub>)|analog signal|Preheat time: Over 24 hour|
|{{anchor:o2_a2}}{{:sensor:g.png|Gas sensor}}\\ <color blue>Oxigen</color> |AlphaSense \\ **O2-A2** {{:sensor:o2_a2.png?100 |O2-A2}}|**5V**|Range of oxygen sensor: 0..30 % \\ Load resistance: 47-100 Ω|analog signal|-|
|{{anchor:tgs2611}}{{:sensor:g.png|Gas sensor}}\\ <color blue>Methane \\ Natural gas</color> |GL Sciences \\ **TGS-2611** {{:sensor:tgs2611.png?100|TGS-2611}}|**5V**|Sensor resistance in 5000ppm of methaneat 20°C and 65% R.H.  \\ Sensor resistance: 0.68 .. 6.8 kΩ in 5000 ppm methane|analog signal|Conditioning period before test: 7 days|
|{{anchor:scd30}}{{:sensor:g.png|Gas sensor}}{{:sensor:t.png|Temperature sensor}}{{:sensor:h.png|Humidity sensor}}\\ <color blue>CO2 \\ humidity \\ temperature</color> |Sensirion \\ **SCD-30** {{:sensor:scd30.png?100|SCD-30}}|**3.3V / 5V**|Humidity range: 0 .. 100 %RH \\ Temperature range: -40°C .. 70°C \\ CO² range: 0 .. 40’000 ppm (I²C, UART), 0 .. 5’000 ppm (PWM)|UART (Modbus Point to Point; TTL Logic), PWM and [[com:basic_i2c|I²C]]|Response time: 20s \\ Sensor lifetime: 15 years|
|{{anchor:gm102}}{{:sensor:g.png|Gas sensor}} \\ <color blue>NO²</color> |MEMS \\ **GM-102b** {{:sensor:gm_102.png?100|GM-102}}|**5V**|Detection Range: 0.1~10ppm (NO²) \\ Heater Resistance: 80Ω±20Ω（room temperature|analog signal|-|
|{{anchor:gm302}}{{:sensor:g.png|Gas sensor}} \\ <color blue>alcohol gas</color> |MEMS \\ **GM-302b** {{:sensor:gm_102.png?100|GM-302}}|**5V**|Detection Range: 1..500ppm (Ethanol vapor) \\ 80Ω±20Ω（room temperature|analog signal|-|
|{{anchor:gm502}}{{:sensor:g.png|Gas sensor}} \\ <color blue>Alcohol (C2H5OH) \\ Hydrogen(H2) \\ Formaldehyde(CH2O)</color> |MEMS \\ **GM-502b** {{:sensor:gm_102.png?100|GM-502}}|**5V**|Detection: Alcohol (C2H5OH), 10..500ppm \\ Detection: Hydrogen(H2), 1..1000ppm \\ Detection: Formaldehyde(CH2O), 10..100ppm|analog signal|-|
|{{anchor:gm702}}{{:sensor:g.png|Gas sensor}} \\ <color blue>Carbon monoxide (CO) \\ Hydrogen (H2)</color> |MEMS \\ **GM-702b** {{:sensor:gm_102.png?100|GM-702}}|**5V**|Detection: \\ Carbon monoxide sensor (CO) : 10..5000ppm \\ Hydrogen sensor (H2): 10..500ppm|analog signal|-|
|{{anchor:mics_5524}}{{:sensor:g.png|Gas sensor}} \\ <color blue>Carbon monoxide (CO) \\ Methane (CH4) \\ Ethanol (C2H5OH) \\ Propane (C3H8) \\ Butane (C4H10) \\ Hydrogen (H2) \\ Hydrogen sulfide (H2S) \\ Ammonia (NH3)</color> |Fermion \\ **MICS-5524 V1.0** {{:sensor:mics_5524_v10.png?100|MICS-5524 V1.0}}|**5V**|<color red>The module is intended for educational and hobby purposes! </color>\\  \\ Measuring range: \\ 1 .. 1000 ppm (carbon monoxide CO) \\ 10 .. 500ppm (Ethanol C2H5OH) \\ 1 .. 1000ppm (Hydrogen H2) \\ 1 .. 500 ppm (NH3 ammonia) \\ > 1000 ppm (methane CH4)|analog signal|-|
</datatables>