Portable 6-in-1 Air Quality Tester Real-Time Detection with High Accurate Sensors and Large Capacity Battery for Comprehensive Parameters Measurement

【Real-Time Detecting & Comprehensive Detection】: It provides instant readings of carbon monoxide, O2 concentration, altitude, barometric pressure, temperature, and humidity so you can know the air quality around you in real time, whether indoors or outdoors. 【High-Precise Sensors & Long Lifespan】: Equipped with electrochemical O2 and carbon monoxide sensors that offer accurate measurements with a long service lifespan, providing reliable data over extended periods. 【User-Friendly Alerts & Visual Indicators】: Features a 3-stage visual and audible warning system for carbon monoxide concentrations, indicating 0-50 PPM levels with a green light, 51-200 PPM levels with a yellow light and alarm, and 201-500 PPM levels with a red light and continuous alarm. In addition, an audible alarm and flashing O2 icon indicate low or high O2 levels. 【Powerful Battery & Efficient Charging】: Powered by a 1500mAh rechargeable lithium battery with fast Type-C charging, capable of 72 hours of standby time, ensuring long-lasting performance and quick recharging for continuous use. 【Compact and Portable Design】: This air quality tester is lightweight and portable, making it easy to carry and use in various settings, including homes, offices, and during openair activities like hiking and skiing. 【Real-Time Detecting & Comprehensive Detection】: It provides instant readings of carbon monoxide, O2 concentration, altitude, barometric pressure, temperature, and humidity so you can know the air quality around you in real time, whether indoors or outdoors. 【High-Precise Sensors & Long Lifespan】: Equipped with electrochemical O2 and carbon monoxide sensors that offer accurate measurements with a long service lifespan, providing reliable data over extended periods. 【User-Friendly Alerts & Visual Indicators】: Features a 3-stage visual and audible warning system for carbon monoxide concentrations, indicating 0-50 PPM levels with a green light, 51-200 PPM levels with a yellow light and alarm, and 201-500 PPM levels with a red light and continuous alarm. In addition, an audible alarm and flashing O2 icon indicate low or high O2 levels. 【Powerful Battery & Efficient Charging】: Powered by a 1500mAh rechargeable lithium battery with fast Type-C charging, capable of 72 hours of standby time, ensuring long-lasting performance and quick recharging for continuous use.