"HAKINAKU Portable Carbon Monoxide Detectors [3-in-1] Mini Size CO Monitor with Kickstand & Lanyard Gas Smoke Alarm [ CO Temperature Humidity Sensor ] for Outdoor Camping Travel RV Home Hotel (Orange) 【3in1 CO detectors】carbon monoxide, humidty and temperature monitors all Integrated in 3.5x2.2x 0.66inches mini size detetor body, real time tracking the concentration of harmful gases; humidity; temperature and make them show on the HD screen. 【New Electrochemical sensor upgraded】Built-in new upgraded sensor makes it more accurated and longlasting detect carbon monoxide. CO range: 0 to 1000PPM; Humidity range: 0% to 95%RH; Temperature range: 14 to 140 ℉. The cycle alarm works when the CO is over 50ppm: 50-100ppm: 3 times alert in 3 mins, 101-200ppm: 5 times alert in 5 mins, 200ppm upper: continuously alert. 【Longer battery life with new power-saved mode】Built-in 1000 mAh lion battery which provides longest 120 hours life with power-saved mode: Screen auto sleep after 30s, the CO detector will go into low power operating mode.(CO monitor sitll continuesly working when screen off.) 【Portable Design CO detector】 Our 3in1 detetors come with lanyard and design with kickstand & Screw buckle hole. We can hang it , fixing it to wall or keep it stand anywhere, perfect for outdoor & indoor activities, camping tents, boats, aircraft, stove heating, RV car, hotel, kitchen, bedroom, living room and other confined spaces. 【How to test it ?】 Carbon monoxide is generated in incomplete combustion and dense smoke. We can take it close to a cigarette or burning paper that produces thick smoke. The CO concentration will change and show on the screen. Don't test it by car exhaust or airy place, too low CO consentration can't not trigger sensor to work. Date First Available: December 15, 2023 Part Number: CWQ-UStoEU-HD09-ORANGE Unit Count: 1.0 Count Power Source: Battery Powered Included Components: Lanyard, Type C fast-charging cable, Manual, ‎3in1 CO detector Wattage: 5 watts UPC: 763914089096 ASIN: B0CQC1SV5S Batteries: 1 Lithium Polymer batteries required. (included) Product Dimensions: 3.5"D x 0.66"W x 2.2"H Item Package Quantity: 1 Sensor Type: Electrochemical Batteries Required?: Yes Manufacturer Warranty Description: 1 year free exchange for any quality issues Voltage: 5 Volts Item Height: 1.9 centimeters Manufacturer: Shenzhen Huidu Technology Co., Ltd. Style: Portable Built-In Media: Lanyard, Type C fast-charging cable, Manual, ‎3in1 CO detector Enclosure Material: ABS Manufacturer : Shenzhen Huidu Technology Co., Ltd. Batteries Included?: Yes Warranty Description: 1 year free exchange for any quality issues Usage: Travel, Outdoor, indoor, Camping, Home Battery Cell Type: Lithium Ion Color: 3IN1 Orange Item model number: HD09 Material: ABS Model Number: HD09 Brand: HAKINAKU Operating Humidity: 95 percent Alarm: alarm Style Name: Portable Item Dimensions D x W x H: 3.5"D x 0.66"W x 2.2"H Item Weight: 65 Grams"