Accurate Measurement : This device offers high accuracy in measuring dissolved hydrogen (H2) with a resolution of 2ppb and a range of 0-2400ppb, as well as pH and ORP with a resolution of 0.01ph and 1mv respectively, ensuring precise results for drinking water quality analysis. Durable and Water-Resistant : With an IP67 waterproof grade, this device can withstand harsh environments and is perfect for field use or in areas with limited access to clean water, providing reliable measurements every time. Convenient and Portable : Weighing only 105g, this pen-type device is lightweight and easy to carry, allowing users to conduct on-site water quality analysis with ease, making it ideal for water treatment plants, laboratories, and field testing. Long-Lasting Power Supply : Powered by 4x1.5V AG-13 button batteries, this device provides a long-lasting power supply, reducing the need for frequent battery replacements and minimizing downtime. Customizable and Certified: With customized support available for OEM orders and certifications including CE and RoHS, this device meets international standards and can be tailored to meet specific user requirements, ensuring compliance and reliability in various applications.