1、Can be powered by adapter or lithium battery, easy and convenient to use and operate. 2、Have good accuracy and frequency stability, suitable for oscilloscope scan time factor calibration. 3、Used in conjunction with an oscilloscope, can be used for audio amplifier electronic circuit testing and debugging, frequency characteristics and impulse response testing and measurement. 4、Square wave output, suitable for oscilloscope attenuator and probe pulse characteristic adjustment. 5、Small in size and light in weight, convenient to carry and use at any time, very convenient and practical. 1 x DDS Functional Signal Generator1 x Power Cord1 x User Manual Item Type: DDS Functional Signal GeneratorMaterial: PBTModel: FG-100Main Output Waveforms: Sine wave and square wave, triangle wave, sawtooth waveMaximum Output Amplitude: ±10Vpp (no load)Output Impedance: 50Ω±10%DC Bias: ±10V (no load)Display: LCD 1602Output Frequency Range:Sine Wave: 1Hz-500KHzSquare Wave: 1 Hz-20kHz (effective range)Triangle Wave: 1 Hz-20KHz (effective range)Sawtooth Wave: 1 Hz-20kHz (effective range)Resolution: 1 HzPower Supply: DC 3.5-10VPurpose: Signal generator Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia