Work frequency:420-440mhz FSK Wireless Embedded Receiver Module SPI interface Modulation:FSK Product Description:FC- ... temperature:: -40C degree--+85C degreeApplications:wireless data communication ,remote control,Keyless entry,home automation,wireless toy. Etc. Pin No.NameDescription1RFAntenna ... SPI enable 6TX_DATATX Data / SPI Data7CEEnable / SPI Clock8GNDGND FSK Wireless Embedded Receiver Module