Wireless displacement sensor (crack gauge) is a resistive displacement sensor based on mobile Internet of Things transmission. Firstly, it adopts resistance sensor technology, which can accurately measure the small displacement of buildings or structures and monitor deformation in real time; Built in mobile IoT communication module, data transmission is achieved through wireless network, making it convenient for users to remotely monitor data and achieve real-time monitoring and remote control

The non nuclear soil densitometer (EDG) can accurately measure soil density, moisture content, and compaction degree in roads.

The asphalt non nuclear density meter uses advanced electromagnetic technology to obtain accurate readings of asphalt pavement density.

The concrete non nuclear density meter can accurately measure the density and compaction of concrete in roads and foundations. It has the advantages of high measurement accuracy, fast measurement speed, and no radiation.