- Extended Working Time: Enjoy up to 240 minutes of continuous use, providing ample time for your tasks without the need for frequent recharging. - Reliable Power Supply: Operates on a 5V 850 mAh semiconductor, ensuring consistent performance and reliability throughout its use. - Wide Measuring Range: Accurately measures between 400 to 5000, making it versatile for various applications, from basic tasks to more complex projects. - High Precision: Achieves a measuring accuracy of 1 0ppm, allowing for precise readings that instill confidence in your results. Key Benefits: - Ideal for professionals and hobbyists who require accurate measurements for projects in fields such as engineering, construction, and environmental monitoring. - A dependable tool for laboratory settings where precision is paramount, ensuring that your experiments yield reliable data. - Perfect for home improvement tasks, enabling DIY enthusiasts to achieve accurate measurements for renovations and installations. Practical Applications: - Use it for calibrating equipment in laboratories, ensuring your instruments are functioning at optimal levels. - Great for assessing air quality and environmental conditions, providing peace of mind for health and safety. - Utilize it in construction projects to verify material specifications and ensure compliance with standards. This product combines functionality and performance, making it a must-have tool for anyone who values accuracy and reliability in their work.