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Best CO2 meter for indoor gardening

For successful indoor gardening, we need a certain level of CO2. This competition is about finding the best solution on the market for measuring CO2.
To qualify
  • Can be used remotely
  • Measuring CO2 in air
To score
  • Longevity
  • Price
  • Easy to install
  • Measurement precision
  • Measurement range
Weekend fun time!

Voting Ended



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Most gases can absorb infrared (IR) light. These are gases consisting of two different kinds of atoms, such as CO2, and also CO, NOx and all carbon hydrogens (CH) such as methane, propane or other natural gases employed for heating. IR light is capable of exciting higher energy levels of the molecules by coupling to the dipole moment of the heteroatomic assembly. Heat energy from the IR light is therefore transferred into the gas. Thus, for example, measure and monitor the concentration of im...
With this sensor, you can easily monitor changes in CO2 levels occurring in respiration of organisms ranging from peas to humans. A 250 mL respiration chamber with probe attachment is included for running controlled experiments with small plants and animals. On the high range, you can explore human respiratory changes in CO2 levels based on exercise. The lower range offers more sensitivity for cellular respiration and photosynthetic metabolism studies.
**Features** Ready-to-Run No Additional Circuitry or Calibration Required Highly Accurate Digital Output Concentration Readings available in either Analog, PWM or Digital Format Detection Range: 0 - 1000 ppm C02 (Carbon Dioxide) Accuracy: ±50ppm Dimensions: 57mm Length, 35mm Width
CO2 Sensor (Arduino compatible) SKU: SEN0159 Contents [hide] 1 Introduction 2 Specification 3 Tutorial 3.1 Connecting Diagram 3.2 Sample code1 3.3 Sample code2 3.4 Result 4 Trouble shooting 5 More Introduction Greenhouse Effect is melting the iceberg every minute, By knowing the exact concentration of CO2, we can do something to reduce the CO2 and to protect our earth. For that reason, an HQ CO2 sensor is designed by DFRobot engineer. This is the first CO2 sensor in OSHW market. The output vo...
The K-30 Sensor Module is a maintenance-free transmitter module intended to be built into different host devices that require CO2 monitoring data. It is an accurate, yet low-cost solution for OEMs who want to integrate CO2 sensing into their products. The compact size, low-power requirements and multiple output options are intended to be easily implemented into analog or microprocessor-based controls and equipment.
MH-Z19 NDIR infrared gas module is a common type, small size sensor, using Non-dispersive Infrared (NDIR) principle to detect the existence of CO 2 in the air, with good selectivity, non-oxygen dep...
Perfect range for gardening, good precision with great price.