Digital Carbon Monoxide Detector with Battery Powered Audible Alarm

【How to Use Carbon Monoxide Alarm】Powered by AA batteries, it will turn on automatically after charging the battery, then enter working mode (the screen will turn off immediately, which is a normal phenomenon). When the concentration value is above 30 ppm, the screen will light up and display the value so you can check the PPM value at any time 【Carbon monoxide detector】 is equipped with an LCD display for easy real-time reading of the values ​​(ppm) and audible and visual alarms. When the concentration exceeds a certain level, the alarm sound and red light will flash. You can quickly and clearly understand the PPM concentration and take appropriate measures to effectively protect your personal safety and property safety. 【Alarm self-test】To test the effectiveness of the product, you can perform a self-test by briefly pressing the button once.If the value is not displayed on the screen and an orange light is displayed, it indicates that the battery is fully charged and reminds you to replace the battery timely 【Widely Used Carbon Monoxide Alarm】Adopting high precision electrochemical sensor, it can quickly detect carbon monoxide gas. Can be used in kitchen, bedroom, bathroom, garage, RV, campsite and other places.