Features: This 3/4 in 1 detector simultaneously monitors CO, CO2, temperature, and humidity with visual alarms for comprehensive environmental safety in homes and workplaces. Featuring ABS and metal construction and built in magnetic mount, the compact device offer clear LCD readings and 360 degree placement flexibility on metallic surfaces. Ideal for homeowners, HVAC technicians, camping enthusiasts, and industrial workers requiring air quality monitoring in confined spaces. Perfect for garages, kitchens, laboratories, and workshops where gas leaks or poor ventilation might endanger health and equipment. Its energy efficient design ensures extended operational between charges, while the portable size (exact dimensions) allows effortless easy carrying Specifications: Component:Metal+ABS Type:3in1/4in1 Color:Green/White Size:Approx.97x56x31mm/3.81x2.2x1.22inch Package Includes: 1 Set 3/4 in 1 CO Leak Detector note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.