The STA type anchor bolt stress gauge is usually embedded in various concrete projects such as building foundations, piles, underground continuous walls, tunnel linings, Bridges, slopes, docks, dry docks, gates, etc., as well as in the safety monitoring of deep foundation pit excavation, to measure the stress of reinforcing bars inside the concrete, the anchoring force and pulling force of anchor bolts, etc. This product can be equipped with an identity recognition function based on the actual needs of customers, facilitating the search for the original instrument code after disconnection. It is widely applied to stress monitoring of structures such as slope anti-slide piles, foundation pit support piles, internal forces of tunnel and tunnel reinforcement, and internal forces of water gate bottom plates.