Features: Carbon Monoxide Detector combines CO, temperature, and humidity monitoring in one 3in1 design, featuring a 120 hour runtimes with 1000mAh rechargeable battery for extended outdoor activity. Equipped with a rapid 2 second refreshing sensors and color screen, this travel CO detector displays real times values ( -10℃~50℃ temperature ranges) and triggering audibles alerts when CO exceeds 50ppm. Essential for campers, and travel needing reliable air safety check during trip, indoor barbecues, or hotel stays. Secures mount the small detector via magnetic back or lanyard in tents, car, kitchens, or backpacks for continuous environmental monitoring. Engineered with energy efficient sensors and USB C fast charging compatibility, this analyzers ensures precise readings (±1.5℃ accuracy) for both residential and mobile applications. Specifications: Material: Plastic + Metal Size:Approx. 75x69x30mm/2.95x2.72x1.18in Optional Color: Orange/Gray Carbon Monoxide Ranges: 0-1000ppm(±10%) CO Sound Alarm Ranges: defaults, 50ppm Temperature: -10℃-50℃(±1.5 ℃)/14℉-122℉(±2.7F) Humidity: 0%-95%(±5%) Battery Capacity: 1000mAh Quantity: 1pc Package Includes: 1pc Carbon Monoxide Detectors note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.