Description <br> ACD1100 infrared carbon dioxide sensor: fast response, fast recovery time, strong anti-interference ability <br> ACD1100 uses the principle of non-dispersive infrared (NDIR) to detect the concentration of carbon dioxide in the air. ACD1100 has the advantages of good selectivity, no oxygen dependence, long life, etc., with digital interface output, easy to use. ACD1100 is a high-performance sensor that integrates infrared absorption gas detection technology, precision optical path and high-precision signal detection circuit. <br> ACD1100 has a wide range of application scenarios, suitable for air quality monitoring equipment, fresh air system, air purification equipment, HVAC equipment, etc. <br> <br> Colour:As Shown <br> Material:ABS <br> Due to different batches, there may be differences in product appearance and printed text, which will not affect use <br> <br> Package Contents: <br> 1 * CO2 Infrared Sensor <br> <br> Only the above package content, other products are not included. <br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br>