The OHAUS ST20M Pen pH and Conductivity Meter stand as a compact solution for accurate pH and conductivity measurements. Designed for versatility, this meter caters to the analytical needs of professionals in various settings. Its sleek and ergonomic pen-style design ensures portability and ease of use, making it an ideal tool for on-the-go applications. This meter offers a pH measurement range of 0 to 14 with a resolution of 0.01 pH, ensuring precise and reliable readings. Simultaneously, its conductivity measurement spans 0 to 199.9 mS/cm, providing comprehensive coverage for diverse analytical requirements. The meter operates with an accuracy of ±0.01 pH and ±1% full-scale for conductivity, guaranteeing dependable results. The built-in temperature sensor compensates for variations, maintaining accuracy across a broad temperature range. Equipped with advanced features, the ST20M Pen pH and Conductivity Meter streamline analytical processes. Automatic temperature compensation ensures accurate readings, compensating for temperature fluctuations during measurements. The meter supports one-point calibration for pH and conductivity, simplifying the calibration process. With a user-friendly interface and easy-to-read LCD display, users can navigate effortlessly, facilitating efficient and error-free measurements in the field or laboratory. The meter enhances flexibility with its connectivity options. The ST20M features a USB port for convenient data transfer and analysis, allowing seamless integration with computers and other devices. Its compatibility with standard pH and conductivity electrodes provides users with the flexibility to customize their measurement setup according to specific analytical needs.