3X Mini Indoor Carbon Dioxide Concentration Detector Portable Air Quality Monitoring CO2 Detector

Material:ABS colour:White Package Contents: 3 * Air Quality Monitoring Detector 3 * English manual Only the above package content other products are not included. 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.