?The instrument adopt the Direct Digital Synthesizer (DDS) technology and provide stable, precise, pure and low distortion signals ?The display interface uses a 2.4-inch TFT color LCD screen, making operation more intuitive and convenient ?The instrument uses 14-bit high D/A converter chip (5Vpp output quantization error is less than 1mV), 250MSa/s sample rate, 14bits vertical resolution ?Surface mounting technology improves interference immunity and operational life span. Abundant shortcut keys and graphical user interface simplifies every operation, which makes it easy to operate ?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