The GW-R9A-1 is a miniature PCB mounting UHF radio data receiver.It has a high quality and low price.Technical Summary:

• Versions available on 433.92MHz and 315MHz
• operation  5v @15mA
• SAW  front  end   filter
• Built-in regulator for improved stability and supply noise rejection
• -120dbm sensitivity
• data rates up to 20kbps
• application field:anti-stolen systerms,electronic curtain,door/gate barrier,intelligent household and so on of wireless controls field.