Core Selling Points Accurate 3-in-1 testing, efficient and convenient Multi-functional integrated design: The 3-in-1 high hydrogen test pen combines hydrogen content testing, ORP testing and temperature display functions in one, which meets the user's needs for rapid testing of multiple parameters of water quality, and saves time and effort with one machine. High-precision detection: Adopting high-precision sensors to ensure the accuracy of hydrogen content, ORP value and temperature data, providing users with reliable test results. High quality material, durable and reliable Pure platinum electrode probe: Unlike the common platinum plated probes in the market, this product adopts the whole platinum electrode to ensure the stability and accuracy under long time use, avoiding the detection failure caused by the plating peeling off. Detachable modular design: The probe adopts modular design, which is easy to replace and maintain, prolonging the service life of the product and reducing the cost of use. User-friendly design, easy to operate Large-capacity battery + power reminder: Equipped with 4 LR44 batteries, long-lasting battery life, the upper right corner of the screen is equipped with a power alert function, to keep track of the power situation, to avoid the use of interruptions. Portable and easy to use: compact and lightweight design, easy to carry to different occasions for testing, whether it is for home use or professional testing, can be easily dealt with. Highlights Real-time display and data lock: backlit screen with multi-line display for easy reading; automatic locking of readings ensures the stability of the measurement data for easy recording and analysis. Intelligent power saving: 5-minute automatic shutdown without operation saves power and extends battery life. Easy to replace batteries and electrodes: the whole series use 1*1.5V AAA batteries, electrodes can be replaced by yourself, easy maintenance.