HABOTEST HT621 Portable Carbon Monoxide Detector CO Detector with Audible & Visual Alarm 0-5000PPM CO Alarm Backlit LCD Screen for Home Car Camping Travel

Features:
【Carbon Monoxide Detector】This is an ideal portable CO tester to help you detect CO gas concentrations timely and accurately, reducing the risk of CO poisoning and protecting your life. It is a must-have tool for homeowners, drivers, campers, DIY-ers, tourists, etc.
【Swift Precise Measurement】The tester utilizes an advanced electrochemical sensor head, swiftly detects CO levels from 0-5000 ppm. Its sensitivity ensures early warnings, allowing timely actions to prevent health risks. Accurate readings empower quick decisions, promoting safety and well-being.
【Visual Audible Alarm】The travel CO detector uses both visual and audible alarms. When the concentration of CO reaches the alarm threshold, the screen changes color and emits an urgent alarm sound to alert you of the presence of CO gas in your surroundings, allowing you to promptly detect the danger, protect yourself.
【User-Friendly Functions】With high-quality ABS material and anti-slip edge texture, durable and portable; Low-power indicator will remind you of time to change batteries; It will automatically switch off when not in operation or when no gas is detected within 10 minutes to save power.