Points: 1. Real-time Detecting: Detect carbon monoxide more accurately and receive real-time monitoring on a vibrant color HD screen that displays easy-to-read data refreshed every 2 seconds with zero delay. 2. Always Stay Safe: Protect yourself from harmful CO wherever you go with this easy-to-carry portable carbon monoxide detector. Thanks to its compact size and lanyard, it's convenient to pack and bring along on any trip, giving you and your family peace of mind knowing you're always protected. 3. Expanded Coverage: Experience the CO detection range of up to 1000PPM with our Portable Carbon Monoxide Detector. Its cyclic alarm alerts you when CO exceeds 50ppm, and works flawlessly in any environment with humidity range of 0% to 95% RH and temperature range of -4 to 140 degrees , providing comprehensive protection and your family. 4. Long-Lasting Performance: Our Portable Carbon Monoxide Detector is powered by a 1000mAh built-in battery, offering up to 50 hours of uninterrupted