BX120-20AA Strain Gauge High Precision

The BX120-20AA Strain Gauge is a precision foil-type resistance strain sensor used for measuring mechanical strain, stress, deformation, and structural displacement in engineering and industrial systems. It is widely applied in concrete testing, metal structure monitoring, load analysis, and force measurement applications. The sensor uses a high-quality constantan sensitive grid mounted on a durable phenolic substrate, providing accurate signal response and stable electrical performance. Its design supports high strain limits and excellent fatigue life, allowing reliable operation under repeated stress conditions. The gauge includes 4cm silver-plated copper lead wires , ensuring good conductivity, easy soldering, and secure installation into sensing circuits and Wheatstone bridge configurations. With strong environmental stability and reliable long-term performance, the BX120-20AA is suitable for industrial monitoring systems, research laboratories, structural engineering, and educational measurement projects. Specifications Product Name: BX120-20AA Strain Gauge Model: BX120-20AA Sensor Type: Foil Resistance Strain Gauge Base Material: Phenolic Sensitive Gate Material: High-Quality Constantan Lead Wire Type: Silver-Plated Copper Wire Lead Wire Length: 4 cm Operating Temperature Range: -30°C to +70°C Sensitivity Coefficient: 2.1 ±2% Room Temperature Strain Limit: >20000 UM/M Fatigue Life: >10,000,000 Cycles Installation Type: Solderable Wire Connection Applications Concrete structure monitoring Mechanical stress analysis Load and force measurement Industrial sensing systems Structural engineering projects Research and laboratory testing Bridge and building monitoring Pressure sensing systems Educational engineering experiments Precision measurement systems