Htovila Air quality tester,With Alarm Function Alarm Function Office Humidity With Alarm Function Office Car 3 In 1 Carbon Monoxide Temperature Humidity With Air Quality1 Portable Carbon

【High Accuracy Electrochemical Sensor】: Built-in a high accuracy electrochemical CO sensor, the monitor offers superior accuracy and precises measurements. You can trust the reliability of the data provided, allowing you to make informed decisions regarding your indoor air quality. 【Long Endurance and Portable Design】: Powered by 2*AAA battery(not included), it boasts low power consumption and can last for over 100 hours of continuous use. Its compact size and lanyard feature make it convenient to carry around, allowing you to monitor air quality wherever you go. 【Easy Installation and Versatile Use】: With the included adhesive fasteners, you can easily mount the monitor on the wall or any other surface. Its versatile design makes it suitable for various settings such as homes, offices, schools, and more, offering you peace of mind with its reliable air quality monitoring capabilities. 【Premium Construction and Nice Ventilation】: Made of high-quality ABS material, the monitor has highly durability and resistant to impact. It is also equipped with multiple ventilation ports, ensuring efficient heat dissipation and long-lasting performance. 【Reliable Alarm Function】: The monitor supports an alarm function that alerts you with a sound alarm when the CO concentration exceeds a safety level. This ensures that you are promptly notified of any potential dangers and can take appropriate action.