Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Operating Voltage	5V DC
Interface Type	Analog & Digital Output
Sensing Gases	NH3, NOx, Alcohol, Benzene, Smoke, CO2
Initial Preheat Time	24-48 Hours
Heater Voltage	5.0V ± 0.1V
Heater Current	150mA
Load Resistance	20KΩ (Adjustable)
Module Dimensions	32mm x 20mm x 15mm
Operating Temperature	-10°C to 50°C
Pin Configuration	4 Pins (VCC, GND, DO, AO)

5 reviews

Anonymous

Apr 12, 2026

Rating: 5/5

Great for Arduino Projects

Works perfectly with my Uno. Easy to wire up and read values.

Anonymous

Mar 09, 2026

Rating: 5/5

Fast Delivery

Arrived quickly and well packaged. Sensor is responsive to smoke tests.

Anonymous

Mar 07, 2026

Rating: 4/5

Good sensor, needs calibration

Reads well after warming up. Make sure to calibrate for your specific environment.

Anonymous

Mar 06, 2026

Rating: 3/5

Sensitivity varies

It works but values fluctuate a lot. Needs a very stable power supply.

Anonymous

Feb 19, 2026

Rating: 5/5

Perfect for ventilation control

Using this to trigger fans when air quality drops. Works as expected for hobby use.

5 FAQ

Q: Can I use this with Raspberry Pi?

A: Yes, via the analog pin using an ADC or the digital pin directly.

Q: Is there a library available?

A: Yes, many community libraries exist for Arduino and ESP8266.

Q: How long until it stabilizes?

A: We recommend 24-48 hours initial preheat, then 1-2 minutes before readings.

Q: Is this compatible with 3.3V logic?

A: The module operates at 5V, but analog output can be read by 3.3V boards with caution.

Q: Does this measure CO2 ppm accurately?

A: It detects CO2 presence but is not a precision NDIR CO2 meter.

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