SEN0159 · DFRobot
A 5V analog electrochemical CO₂ sensor for simple high-concentration threshold alarms. Best for projects that need to trigger a fan, relay, buzzer, or warning light when CO₂ exceeds a preset level, such as fermentation chambers, mushroom cultivation tents, and ventilation control experiments. (DFRobot SEN0159)
| Part number | SEN0159 |
|---|---|
| Manufacturer | DFRobot |
| Category | Sensors › Gas & Air Quality |
| Pins | 3 |
| Voltage (max) | 5 V |
Gravity: Analog Electrochemical CO2 Threshold Alarm Sensor for Arduino (0-10000 ppm) pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | SIG | bidirectional | Digital or analog signal |
| 2 | VCC | power | |
| 3 | GND | ground |
Schematic symbol and footprint
Footprint: JST PH 2.0 mm 3-pin through-hole (Gravity PH2.0-3P) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Related parts
Adafruit BME680 - Temperature, Humidity, Pressure and Gas SensorADA3660
Adafruit ENS160 MOX Gas Sensor - Sciosense CCS811 UpgradeADA5606
Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor BreakoutADA3199
Adafruit PMSA003I Air Quality BreakoutADA4632
Adafruit SCD-30 - NDIR True CO2 Temperature and Humidity SensorADA4867
Adafruit SGP30 Air Quality Sensor Breakout - VOC and eCO2ADA3709
ENS160
Gravity: Electrochemical Oxygen / O2 Sensor (0-25%Vol, I2C)SEN0322