LSENLTY Portable Carbon Monoxide Detector with Battery, 2.7 Inch Large Screen Plug-in CO Detector, Lsenlty 3-in-1 Portable CO Detector (Temp and Hum), with Remind Function for RVs, Hotels, Travel

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About This 【Dual-Mode Power Supply】 LSENLTY's newly upgraded plug-in carbon monoxide detector features both a plug-in and AAA battery power supply, eliminating the need for frequen t charging. In the event of a power outage, it automatically switches to battery emergency mode, providing 24/7 uninterrupted security monitoring for peace of mind, whether you're at home or away. 【3-in-1 All-Purpose Monitoring】 This 3-in-1 CO detectors integrates three core monitoring functions: carbon monoxide, temperature, and humidity. Eliminate the need for multiple devices. A single lsenlty device can comprehensively monitor changes in air quality, even in complex environments. 【Accurate Warning】 LSENLTY portable CO detector is equipped with an intelligent warning system. When the carbon monoxide concentration exceeds the warning threshold, the indicator light flashes and the buzzer sounds simultaneously. The 2.7-inch HD display provides real-time notifications, allowing you to quickly understand environmental conditions. 【Safety Light Operation Guide】State 1: When the CO monitor is plugged in, short-press the "O" button to enter self-test mode. The green light flashes three times, then the red light flashes three times. After the flashes are complete, the buzzer sounds, and the safety light illuminates for three seconds. State 2: When the plug-in CO detector is unplugged, the backup battery operates. When carbon monoxide levels >200ppm are detected, a safety light illuminates, a buzzer sounds, and the screen displays a triple warning. 【High-Precision Sensor】 This lsenlty battery-powered carbon monoxide monitor uses an upgraded high-precision sensor with a 2-second refresh rate for fast detection, keeping measurement errors strictly within ±5%. This lsenlty carbon monoxide meter has a measurement range of 0-999 ppm (±5%); a temperature range of -10°C to 50°C/14°F to 122°F (±3%); and a humidity range of 0%-95% RH (±5%). 【5-Year Stable Monitoring】CO monitor equipped with a high-stability sensor, the device maintains excellent monitoring performance over time. Whether used year-round at home or for extended camping trips, it provides reliable environmental safety and prevents the risk of monitoring failure due to sensor aging. 【Multi-scenario adaptation】 Plug in battery backup carbon monoxide detector breaks the limitations of usage scenarios. Whether it's daily monitoring at home, testing the outdoor camping environment, or protecting yourself while traveling, the device is ready to use right out of the box, requiring no additional setup. This lsenlty device can be powered by either a power adapter or AAA batteries, and the batteries are easy to replace, ensuring long-term, trouble-free use. Overview Brand : LSENLTY Style : Portable Carbon Monoxide Detector Power Source : Plug-in/AAA Battery Product Dimensions : 2.52"D x 2.52"W x 4.72"H Alarm : Audible&Visual Operating Humidity : 0%-95%RH(±5%) Upper Temperature Rating : 122 Degrees Fahrenheit Material : Plastic Manufacturer : Shenzhen Zhituoxing Network Technology Co., Ltd. Show more