SAKATA 3D PLA 850 filament is...
0.1Hz-102.4Hz Square Wave Signal Generator Module Display Adjustable Duty Cycle
Dual Adjustable PWM Signal Generator with Display and Serial Interface
This product is a module with integrated AD9850 circuit. This is a DDS signal generator that can generate a sinusoidal or rectangular signal with a theoretical maximum frequency of 62.5MHz. The maximum frequencies recommended to obtain a noise-free signal are 20 MHz for sinusoidal signal and 1 MHz for rectangular signal.