Item Type: Carbon Dioxide Detector <br>Material: ABS <br>Color: As shown in the picture <br>Size: Approx. 9x7x3.5cm / 3.5x2.8x1.4in <br>Weight: Approx.236g/8.3oz <br>Voltage: 5V <br>Current: 500mA <br>Battery: Polymer lithium battery 1500mAh(Included) <br>CO2 Detection Range: 400-6000PPM <br>CO2 Detection Accuracy: 1PPM <br>TVOC Detection Range: 0-2PPM <br>Temperature Measurement Range: -10-50℃ <br>Temperature Measurement Accuracy: ±1℃ <br>Humidity Detection Range: 0%-99%RH <br>Humidity Detection Accuracy: ±2%RH <br> <br>How to Use <br>1. Long press the right switch. <br>2. The monitoring data can be seen after the screen is turned on.<br>1、Real?time monitoring and real?time display of carbon dioxide concentration per cubic meter. <br>2、It is suitable for offices, homes, gymnasiums and other occasion and has a wide range of applications. <br>3、In the alarm mode, the user is prompted to pay attention to the environment by changing the color. <br>4、Intelligent color screen display, clear numbers, easy to identify and read. <br>5、It is small and portable, easy to carry, does not take up much space, and can be installed at home. 6、It can detect and display the temperature and humidity of the environment to help users understand the environment.1. Please allow 1?2in error due to manual measurement. Thanks for your understanding. <br>2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.<p>1 x Carbon Dioxide Detector</p><p>1 x Instruction Manual</p><p>1 x USB Cable</p>