This sine frequency generator an very wide adjustable ranges from 0.1Hz to 99999Hz with 0.01Hz accuracy , covering extremely low to high frequencies for scientific research and experiments. Featuring stable sine output at standard 7.83Hz with 3V signals electric , it also synchronously outputs square and inverted square waves for precise testing without interferences. Designed with an LCD display and physical buttons, this generator allows frequency and mode switching, making it user friendly without complex programming. Compact and at under 1W power consumption, it features a 15x15cm clear ABS case with 5.5×2.1mm/USB power input for easy portability and circuit observation. Simultaneously outputs sine, square, and inverted square waves through dedicated interfaces, ideal for romance studies, electronic testing, and signals simulation applications.