dds function signal generator FG-100 frequency meter Small size, multiple functions, simple operation, easy to carry. With oscilloscope, which can be used in electronic circuit experiment and debugging, frequency because of its good DDS precision and frequency stability, it is also very suitable for oscilloscope sweZ oscilloscope, which can be used in electronic circuit experiment and debugging, frequency response audio amplifier and impulse response of test and measurement. Because of its good DDS precision and frequency stability, it is also very suitable for the oscilloscope's time calibration factor. The square wave output also matches the oscilloscope attenuator and probe pulse adjustment, etc. Main output waveform: sine wave and square wave, triangle wave, sawtooth wave. Maximum Output Amplitude: +/-10Vpp (No Load)Output Impedance: 50Ohm +/-10%Dc Bias: +/-10V (No Load)Display: LCD1602Material: Metal Resolution: 1Hz Power Supply: DC 3.5-10V Output Frequency Range:Sine Wave: 1Hz-500KHz Square Wave: 1Hz - 20kHz (Valid Range)Triangle Wave: 1Hz - 20KHz (Valid Range)Sawtooth Wave: 1Hz - 20kHz (Valid Range)Color: White Material: Metal Size: 10x5x3cm Package Contents:1 x Generator DDS function signalOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.