Powered by solar energy, more environmentally friendly and safe. Detachable, easy to maintain, mechanical slide rail is wear-resistant, and has a longer service life. Numerical display ensures accurate readings. Compact in size, convenient for operation in narrow spaces such as fume hoods. The reflux system can quickly exhaust bubbles, ensuring experimental accuracy, economy, environmental protection, and safety. Controllable titration speed, accurate up to 10 μ m; l， Realize micro titration. Through the "Quick Cal" function, users can quickly self calibrate.