CO2 Gadget Low Power CO2 monitor with Lilygo TTGO T5 ePaper and Sensirion SCD41 Sensor
A low-power CO2 meter with a 90-day autonomy on a single charge? Not bad, not bad at all...
Arduino Projects
Winsen Low Power NDIR CO2 Sensor MH-Z1311A
A highly compatible NDIR CO2 sensor with a power consumption of less than 1mAh.
Cellular Polypropylene (PP) Boxes
Here's a great idea! Let's see how to easily make boxes for our projects in a homemade way, with cheap and easily available materials.
CO2 Meter TFT Colour Display with TTGO T-Display Sensirion SCD30 - The CO2 Gadget
CO2 meter with colour display and Bluetooth connection. Take it with you everywhere and measure the air quality discreetly and at any time.
Sensirion SCD30 dual-channel NDIR CO2 Sensor
One of the best options. In some cases it is even the only recommended option.
CO2 meter on your mobile phone with ESP32 and Sensirion SCD30 sensor [BASIC VERSION] [BASIC VERSION].
CO2 meter with App for Android and iOS, via Bluetooth, official from the sensor manufacturer Sensirion
Sensirion SCD41 and SCD40 CO2 Sensors
This CO2, temperature and humidity sensor is much more than just a pretty face on a slim body...
CO₂ Meter with MQ-135 sensor (Don't miss it, it's not what it looks like)
In this article I am going to tell you what you have to do to mount a CO2 meter with a MQ-135 (sic) sensor. An easy and cheap tutorial (it's free). I hope that, if you are reading this article, it is because you have thought about building an easy and cheap meter with a MQ-135 sensor and ... Read more