Resistive strain gauges are designed for the measurement of strain and stress states in civil and infrastructure structures using electrical strain-gauge bridge technology. Based on a Wheatstone bridge configuration with integrated strain gauges, the sensor detects deformation through changes in electrical resistance, providing a proportional output signal expressed in mV/V. The gauges can operate in both tension and compression and are designed for installation on steel structures or embedded in concrete, ensuring versatility across a wide range of applications. The robust construction and resin encapsulation of the sensing element provide protection against impacts, moisture, and harsh environmental conditions, enabling use even in construction site environments. Thanks to their fast installation and immediate response, these sensors are particularly suitable for load tests, temporary monitoring, and dynamic applications with continuous readings.