Ensure precise and convenient hydrogen concentration measurements with this advanced Digital Hydrogen Meter, featuring a clear LED digital screen with backlight for easy reading in any lighting condition. Designed with user-friendly functionality, this pen-type H2 meter includes a data hold feature that allows you to lock and store readings effortlessly by simply pressing the "HOLD" button. Powered by batteries (4 x LR44 1.5V button cells, not included), it alerts you with a low voltage prompt when battery replacement is needed, ensuring uninterrupted performance. Key Features: · **Clear Digital Display with Backlight:** The LED screen provides dual display of hydrogen concentration and temperature, delivering accurate and easily readable data even in dim environments. · **Data Hold Function:** Conveniently lock measurement results for easy recording and analysis, enhancing usability in field and laboratory settings. · **Portable and Lightweight Design:** Compact handheld form factor (approx. 18.8cm/7.4in) and lightweight (245g/8.6oz) construction make it ideal for on-the-go testing without occupying much space. · **Wide Measurement Range:** Accurately measures hydrogen concentration from 0 to 2400 ppb (parts per billion) and 0 to 2.40 ppm (parts per million) with high resolution (2 ppb / 0.02 ppm). · **Automatic Temperature Compensation:** Ensures reliable readings across temperatures from 0 to 50℃ (32 to 122℉), with temperature displayed to 0.1℃ resolution and ±0.2℃ accuracy. · **Low Battery and Auto Shutdown:** Features a low voltage indicator and automatic shutdown after 10 minutes of inactivity to conserve battery life. · **Temperature Unit Conversion:** Easily switch between Celsius and Fahrenheit for temperature readings according to your preference. · **Durable ABS Material:** Constructed from sturdy ABS plastic for long-lasting use in various environments. Specifications: · Material: ABS · Product Size: Approx. 18.8cm (7.4in) · Gross Weight: 245g (8.6oz) · Display: H2 and Temperature Dual Display with Backlight · Measuring Range: 0–2400 ppb, 0–2.40 ppm · Resolution: 2 ppb, 0.02 ppm · Temperature Range: 0–50℃ (32–122℉) · Temperature Resolution: 0.1℃ · Temperature Accuracy: ±0.2℃ · Auto Shutdown: 10 minutes · Battery: 4 x LR44 1.5V Button Cells (Not Included) · Features: Data Hold, Low Battery Display, ℃/°F Conversion, Automatic Temperature Compensation Package Includes: · 1 x Digital Hydrogen Meter This Digital Hydrogen Meter is an essential tool for professionals and researchers in environmental protection, food safety, health monitoring, geological exploration, metallurgy, surface water analysis, industrial wastewater testing, and drinking water quality assessment. Its precise measurement capabilities, combined with portability and ease of use, make it a reliable choice for accurate hydrogen detection in diverse applications.