Features 1、【Versatile and Reliable】: The 85dB 6 in 1 CO2 detector is a must-have for any outdoor enthusiast. This compact device not only detects CO and CO2 levels, but also measures altitude, air pressure, temperature, and humidity. With its NDIR CO2 sensor and electrochemical CO sensor, you can trust its accuracy and dependability. 2、【User-Friendly Interface】: Equipped with a 5-inch screen, this CO2 monitor provides clear and easy-to-read measurements. The built-in backlight ensures visibility in any lighting condition, making it suitable for both wall mounting and desktop use. The device also features a user-friendly interface with a convenient °C/°F temperature switch for your preference. 3、【Extensive Detection Range】: With a CO2 detection range of 400-5000ppm and a CO detection range of 0-1000PPM, this carbon dioxide detector is capable of monitoring a wide range of air quality levels. Additionally, it can measure temperatures from -10°C to 60°C (-50 to 140°F), humidity levels from 5% to 95% RH, and atmospheric pressure from 300-1100hPa. Stay informed about the air quality around you with this comprehensive device. 4、【Convenient Data Storage】: The CO2 meter comes with a 128MB secure digital memory card, allowing you to easily store and retrieve data. This feature is especially useful for tracking and analyzing air quality trends over time. Whether you are a homeowner, a gardener, or a camping enthusiast, this device will help you make informed decisions to improve your living environment. 5、【Smart Integration with Tuya APP】: Download the Tuya APP from the compatible with Apple Store or Play Store, or simply scan the provided QR code to access the smart features of this air quality monitor. With the Tuya APP, you can remotely monitor and control the device, receive real-time notifications, and access historical data. Ensure BT is enabled on your smartphone and that you are within BT range of 2-5m/7-16ft from the device. Features: 【Versatile and Reliable】: The 85dB 6 in 1 CO2 detector is a must-have for any outdoor enthusiast. This compact device not only detects CO and CO2 levels, but also measures altitude, air pressure, temperature, and humidity. With its NDIR CO2 sensor and electrochemical CO sensor, you can trust its accuracy and dependability. 【User-Friendly Interface】: Equipped with a 5-inch screen, this CO2 monitor provides clear and easy-to-read measurements. The built-in backlight ensures visibility in any lighting condition, making it suitable for both wall mounting and desktop use. The device also features a user-friendly interface with a convenient °C/°F temperature switch for your preference. 【Extensive Detection Range】: With a CO2 detection range of 400-5000ppm and a CO detection range of 0-1000PPM, this carbon dioxide detector is capable of monitoring a wide range of air quality levels. Additionally, it can measure temperatures from -10°C to 60°C (-50 to 140°F), humidity levels from 5% to 95% RH, and atmospheric pressure from 300-1100hPa. Stay informed about the air quality around you with this comprehensive device. 【Convenient Data Storage】: The CO2 meter comes with a 128MB secure digital memory card, allowing you to easily store and retrieve data. This feature is especially useful for tracking and analyzing air quality trends over time. Whether you are a homeowner, a gardener, or a camping enthusiast, this device will help you make informed decisions to improve your living environment. 【Smart Integration with Tuya APP】: Download the Tuya APP from the compatible with Apple Store or Play Store, or simply scan the provided QR code to access the smart features of this air quality monitor. With the Tuya APP, you can remotely monitor and control the device, receive real-time notifications, and access historical data. Ensure BT is enabled on your smartphone and that you are within BT range of 2-5m/7-16ft from the device. Specification: Model: PT04 Product material: ABS Product size: 11 x 9 x 4cm / 4.33 x 3.54 x 1.57in Product weight: 262g / 9.24oz Product color: White, Silver, Dark Green (Optional) Battery: 3200mAh Input voltage: DC 5V 2A CO2 measurement range: 400-5000ppm Resolution: 1ppm CO2 measurement accuracy: ±50ppm or ±5% of reading CO measurement range: 0-1000PPM CO measurement accuracy: ±10ppm or±5% of reading Temperature measurement range: -10°C - 60°C / -50 - 140°F, ±2°C/35.6°F Humidity measurement range: 5%-95%RH; ±5%RH Atmospheric pressure range: 300-1100hPa Relative accuracy (950-1050hPa 25°C/77°F): ±0.12hPa Absolute accuracy (950-1050hPa 0-40°C/32-104°F): ±1hPa Sound level: 85dB (3 meter / 9.84ft) Working temperature: 0 °C-50 °C / 32-122°F Working humidity: 0-95%RH (non-condensing) Sensor technology: Electrochemical - CO, NDIR - CO2 Secure digital memory card capacity: 128MB Packing List: 1 x Detector 1 x Hanging Clip 1 x Desktop Stand 1 x Type-C Cable 1 x Carrying Bag 1 x 128MB Secure Digital Memory Card 1 x Manual Package List 1 x Detector 1 x Hanging Clip 1 x Desktop