Record: fastest CO2 sensor on the planet (@ 35 mW only)
Gas Sensing Solutions of Cumbernauld, UK, is claiming a speed record for its SprintIR6S ‘non-dispersive infra-red (NDIR) CO2 sensor: up to 20 readings/s for a 0-10% step change in CO2 flowing at 0.1 litre per minute. Inside, the sensor measures differential light absorption between light at 4.2 and 4.4 μm. The device is 23.8 mm in diameter and 24 mm tall and takes just 35 mW from a 3.25 to 5.5 V supply. Variants are available optimized for monitoring CO2 across 0-100% concentration.