?Made of high-quality materials, it is durable, wear-resistant and can be used for a long time. Reliable circuitry guarantees a high degree of stability and accuracy ?The frequency range is selectable from 10Hz to 1MHz and is calibrated on one dial in five ranges ?The signal generator has the characteristics of a sine wave and an effective frequency response ?The vertical panel integration ensures the ease of use of the device and makes the operation simpler and more convenient ?100% Guarantee: High quality product, we promise to do everything possible to satisfy all customers. However, if you are not 100% satisfied with our service or our products, simply contact us. We are always at the side of our customers to support and continuously seek new ways to improve