Features 1、Mini design with hanging lanyard. This 3 in 1 Carbon monixide detector is mini design with dimensions: 4.13 x 1.37 x 0.63 inches. It is so convenient to carry it or hang it to anywhere. 2、Electrochemistry working method. Built-in high-sensitive electrochemical sensor, strong anti-interference ability, will not be affected by other odors. It uses a powerful microprocessor with a 0.96/" TFT true color display. 3、Larger detection range: CO range: 0 to 1000PPM; Humidity range: 0% to 99%RH; Temperature range: -10℃ to 50℃. The cycle alarm works when the CO is over 50ppm. 4、Built-in 800mAh rechargable battery /u0026 new power-save mode. To extend the CO detector/u0027s working time, the backlight will turn off when there is no operation or alarm signal. The audible alarm will sound /"di/" every minute when battery is low power. New power-save mode helps to improve the ful charged detector working time to 40 hours. 5、Portable Designed. Perfect for outdoor and indoor activities, camping tents, boats, aircraft, stove heating, vehicles, and other confined spaces. It is so good helper for you. Specification This product is a portable air quality (CO, temperature, humidity) detector, the product is small and easy to carry, high-end beautiful industrial design, built-in high-sensitive electrochemical sensor, strong anti-interference ability, will not be affected by other odors. It uses a powerful microprocessor with a TFT true color display. The display is delicate, and the buyer can customize the animated logo. Features: Mini design with hanging lanyard. This 3 in 1 Carbon monixide detector is mini design with dimensions: 4.13 x 1.37 x 0.63 inches. It is so convenient to carry it or hang it to anywhere. Electrochemistry working method. Built-in high-sensitive electrochemical sensor, strong anti-interference ability, will not be affected by other odors. It uses a powerful microprocessor with a 0.96" TFT true color display. Larger detection range: CO range: 0 to 1000PPM; Humidity range: 0% to 99%RH; Temperature range: -10℃ to 50℃. The cycle alarm works when the CO is over 50ppm. Built-in 800mAh rechargable battery & new power-save mode. To extend the CO detector's working time, the backlight will turn off when there is no operation or alarm signal. The audible alarm will sound "di" every minute when battery is low power. New power-save mode helps to improve the ful charged detector working time to 40 hours. Portable Designed. Perfect for outdoor and indoor activities, camping tents, boats, aircraft, stove heating, vehicles, and other confined spaces. It is so good helper for you. Specifications: Material: ABS Sensor: Electrochemical sensor Carbon Detection Range: 0-1000ppm, ±10%ppm Carbon Resolution: 1ppm Working Temperature: -10℃~50℃, Humidity ≤95%RH, No condensation Temperature Measurement Range: -10℃~50℃ Temperature Measurement Error: ±1℃ Humidity Measurement Range: 0%-99%RH Humidity Measurement Error: ±5RH Battery Capacity: 800mAh Battery Life: The light screen is about 18 hours, and the breath screen is about 40 hours Charging Time: About 1 hour Charging Method: USB Type-C Screen Size: 0.96 inch TFT color screen Item Size: 105 * 35 * 16mm / 4.13 * 1.37 * 0.63in Item Weight: 48g / 1.69oz Package Weight: 78g / 2.75oz Package Size: 14 * 4.5 * 3cm / 5.51 * 1.77 * 1.18in Package List: 1 * Carbon Monoxide Detector 1 * USB Cable 1 * Lanyard 1 * User Manual (English) Package List Package List: 1 * Carbon Monoxide Detector 1 * USB Cable 1 * Lanyard 1 * User Manual (English)