M5Stack CO2L Unit with Temperature and Humidity Sensor (SCD41) _RPI_MERCH you'll want two of these

you'll want two of these and then two or more rail sliders for support

but the output current can typically be as high as 2

rubberized handle for extra comfort

Please note: Lipoly battery

M5Stack CO2L Unit with Temperature and Humidity Sensor (SCD41) _RPI_MERCH you'll want two of theseThe UNIT CO2L is a digital air CO2 concentration detection unit with a single measurement low power mode, built in Sensirion's SCD41 sensor, power buck circuitry, and I2C communication. The unit is suitable for the measurement of ambient conditions with a typical accuracy of (40 ppm + 5 % reading) for CO2 measurements with a measuring range of 400 ppm 5000 ppm. Features CO2 concentration detection Temperature and humidity measurement Low power