Adaptation: all kinds of gantry, line rack, bridge, hoist and other lifting equipment tonnage range: 5t, 10t, 16t, 20t, 32t, 50t, 75t, 80t, 100t, 125t, 150t, 200t double beam traffic from This product by weight limiter bearing pressure sensors and control instrumentation two parts, with a digital display and overload alarm from the weight of the crane lifting loop and cut off the power supply and other functions. Suitable for a variety of crane, crane gantry crane and other equipment. This product is compared with other similar products, with high cost performance, economical and practical, good reliability, easy installation, etc.