Crystek’s new PRO Series, Pocket Reference Oscillator is an industry first! A complete HCMOS crystal clock oscillator has been integrated in a rugged SMA housing. Simply connect +3.3Vdc to the female SMA side, and it will output a clean Low Jitter signal from the male SMA side. In effect, each PRO is a fixed frequency portable crystal generator. Frequency stability is ±25ppm over 0°C to 70°C. Perfect for Lab use.