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👉 Accurate Monitoring and Multi-Scenario Adaptability This carbon monoxide detector utilizes high-precision sensing technology to accurately measure carbon monoxide concentrations in the environment, with a measurement range of 0-999ppm and an accuracy of ±5%. It also provides real-time temperature monitoring (-10°C-50°C/14°F-122°F, with an accuracy of ±3%) and humidity (5%-95% RH, with an accuracy of ±5%). Data is refreshed every 2 seconds, providing a comprehensive overview of environmental conditions. Powered by AC 110-240V/50-60Hz, with a maximum operating current of 0.5A, it operates stably across a wide range of voltages. It also operates within a wide temperature range (-10°C-60°C) and a humidity range of 20%-80% RH. Whether in cold winters or hot summers, and in dry or humid environments, it maintains stable and reliable performance, ensuring continuous environmental safety monitoring. 👉 Smart Remind and Convenient Operation The device features a smart remind function. When the carbon monoxide concentration reaches 50ppm, an audible and visual remind system activates, and the corresponding indicator light flashes. Differentiated remind modes are set for different concentration ranges: 0-50ppm is the safe range, with no remind; 51-200ppm is the warning range, with an remind every two minutes and a yellow icon; 201-999ppm is the critical range, with a continuous remind and a red icon, allowing you to clearly identify the danger level and take timely action. To meet your usage habits and needs in different scenarios, the device supports switching between Fahrenheit and Celsius. You can easily adjust the temperature display unit according to your preference. You can also freely control the buzzer on and off according to actual conditions. The screen also offers three brightness settings: high, low, and energy-saving, allowing you to adjust the brightness according to ambient light levels for the optimal viewing experience. The screen rotates 180°, allowing you to view data from different angles, greatly enhancing user convenience. 👉 Durability and Attentive Service This carbon monoxide detector has a lifespan of up to 5 years, ensuring long-term, reliable service. Its flame-retardant ABS plastic casing is durable and effectively protects the device. We offer comprehensive and attentive after-sales service. If you experience any issues with the device, such as failure to detect carbon monoxide, inaccurate temperature and humidity measurements, or device startup failure, please contact us immediately by email. Please include your order number and a detailed description of the issue. We will respond within 24 hours and provide you with a professional and effective solution, ensuring peace of mind during your use.