The VWdot4 Vibrating Wire datalogger utilizes NB-IoT wireless transmission technology and is specially designed to meet the needs of geotechnical engineering applications. It is a reliable choice for automated safety monitoring in civil engineering, water conservancy, construction, and other fields. This datalogger can measure the frequency of vibrating wire sensors and thermistor temperature signals, featuring a waterproof casing that meets IP65 standards and low power consumption, ensuring accurate and continuous data collection even in harsh environments. The VWdot4 Vibrating Wire datalogger is equipped with a built-in 32 GB Micro SD card, providing sufficient storage capacity for over one million data records, making data analysis during long-term monitoring more comprehensive and ensuring that no critical data is missed. This logger is renowned for its excellent cost performance and reliability and has undergone rigorous testing and quality verification to deliver accurate and consistent measurement.