... 2.Frequency: 315MHz/433MHz 3.Distance:<80 Top Quality Wireless Transmitter Receiver Remote CY-402PC CY-402PC ,the four-way ... security industry and other fields. The wireless receiving controller, with high security, storage capacity, stable performance, low power consumption,easy ... outputs inludes self-locking, non-lock, interlock . Output A.singnal self-locking ----connect NO.1 and disconnect NO.2B ...