Welcome to our store!</br> 1、Air quality detector, can be used to test temperature, humidity, TVOC value and the concentration of CO2. 2、Large digital display with backlight, you can clearly see the remaining power, CO2 value, temperature and humidity data. 3、Using advanced sensors, high accuracy, anti‑interference, quickly response speed, reliable to use. 4、The color circle will change(Green‑orange‑red), according to the CO2 and TVOC data. 5、Suitable for agricultural plants, greenhouse vegetables, production warehouses, material processing, home interiors, etc. <p class="wang-edit-text"><p class="wang-edit-text"> Item Type: CO2 Detector Material: ABS Model: K03 Display: LCD screen backlight Applicable Temperature: -1 ℃ - 70 ℃ Applicable Humidity: 10-70%RH Monitoring Float: 20%-50% Charging Standard: 5V-1A Display Mode: LCD screen + backlight Standby Time: About 300-420 Minutes Battery Capacity: 1200MHA Detection Range: 400-5000ppm Sensor: TVOC Sensor Detection Accuracy: 1ppm Charging Standard: 5V-1A Instructions for Use: Start the button, press the button for 3 seconds, rotate on the machine and start checking, no calibration is required. Press the button for 3 seconds, the machine will shut down. <p class="wang-edit-text"><style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x CO2 Detector 1 x USB Charging Cable 1 x Manual (Customer Satisfaction) - is our priority. If you notice any problems with the products after receiving the goods, such as damaged goods or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sale service.</br>