Air monitor, TVOC sensor, high-precision CO2 detector for hotels

Please note: TVOC Sensor: The CO2 detector with a TVOC sensor is designed to detect CO2 levels, temperature, and humidity to help maintain a healthy environment. USB charging is highly recommended.
Features: Real-time detector: The carbon dioxide detector can detect the carbon dioxide concentration in the air in real time, and four indicator lights flash simultaneously when the concentration reaches 1999.
Thank you for your understanding. Easy to read: The CO2 detector uses a smart color display with clear numbers. When the CO2 concentration is between 1600 and 1999, the red warning light will start flashing and sound an alarm.
Thank you for your understanding. Wide range of uses: This portable carbon detector features a compact design, making it suitable for monitoring air quality in homes, schools, office buildings, hospitals, restaurants, shopping malls, factories, hotels, laboratories, and other locations. Thank you for your understanding. Ideal gift: A great gift for him or her. With this air quality detector, you can certainly understand your environment and improve it based on the actual situation. Specifications: Item type: CO2 detector. Product material: ABS. Carbon dioxide detection range: 400-5000 ppm. Accuracy: 1 ppm. Temperature measurement range: 0-40°C. Accuracy: ±1°C. Humidity measurement range: 10%-90% RH. Accuracy: ±2% RH. Battery: Built-in 1200 mAh lithium-ion battery. Charging voltage: DC 5V. Charging time: Approximately 2.5 hours. Normal usage time: Approximately 6 hours. Instructions: After removing the product, please operate according to the instructions. Box Contents: 1 x XCO2 detector. 1 x Charging cable (random color). 1 x User manual (English not guaranteed). Important: The sensor has a 120-second warm-up time before starting the product. It can only be used after this waiting period. If the heater is still malfunctioning, it should be corrected as follows: 1. Turn on the device and hold it in a clean, well-ventilated area for 120 seconds or more. Double-click the button; you will hear a clicking sound, indicating that the correction is complete.