1[High Accuracy] With high accuracy temperature and humidity sensor, the measurement results is accurate, with stable performance, so you can use it with confidence. 2[Multipurpose] Can monitor and display the carbon dioxide concentration per cubic meter in real time, and can detect and display the temperature and humidity of the environment. 3[Color Screen Display] Smart color screen display, clear numbers, easy to identify and read, can help users understand the environment, to meet your various need. 4[Compact And Portable] Carbon dioxide detector is compact and portable, easy to carry, does not take up too much space, and can be installed at home. 5[Widely Application] Widely used in a variety of situations, such as agricultural planting, production warehouses, laboratories, homes, office, etc. Item Type: Carbon Dioxide Detector Material: ABS Voltage: 5V Current: 1A Carbon Dioxide Detection Range: 400-5000ppm Carbon Dioxide Detection Accuracy: 1PPM Temperature Measurement Range: 0-50 Temperature Measurement Accuracy: 1 Humidity Measurement Range: 0%-99% Humidity Measurement Accuracy: 2% Battery: 18650 polymer lithium battery 2000mAh (included) or 3 x AA batteries (not included) Product Size: Approx. 14.1 x 8 x 3.5 cm / 5.6 x 3.1 x 1.4 in Weight: Approx. 247g / 8.7oz Color: White 1 x Carbon Dioxide Detector (Battery Included) 2 x Screw 2 x Expansion Nail 1 x Manual 1 x USB Data Cable