
Portable Co Monitor Long Standby with Build-in Recharge Li Battery. Long Standby Time: Built-in 1000mAh Li battery provides up to 168 hours (1 week) of continuous working time. 3-in-1 Monitoring: Simultaneously measures Carbon Monoxide, Temperature, and Humidity with 1-second refresh rate. Portable Design: Compact unit with lanyard and magnetic mount for RVs, camping, kitchens, and industrial sites. Visual Alarm System: Features 3-color LED that changes color based on CO concentration levels. Adjustable Backlight: Four-stage adjustable backlight settings for clear visibility in various lighting conditions. Customization Available: Offers full customization, minor customization, and flexible customization options. ISO 9001 Certified: Manufactured by an ISO 9001 certified ODM/OEM company with 15 years of R&D experience.