Fangrui Product Details Rf433r Is An Rf Wireless Radio Frequency Receiver, Using Syn531r Radio Frequency Receiver, Working Frequency Is 433.92mhz (using Ask Modulation) Commonly Used By Wireless Controllers, Built-in Pcb Antenna, Stable Receiving Signal Distance Up To 10m, Typical Receiving Sensitivity It Is -109dbm. Rf433t Is A Radio Frequency (rf) Mitter, Using Syn115 Radio Frequency Mitter Ic, Working Frequency Is 433.92mhz (using Ask Modulation) Commonly Used By Wireless Controllers, Built-in Pcb Antenna, Stable Signal Mission Distance Up To 10m, The Output Power Reaches 10dbm. The Exquisite And Compact Housing Design Can Be Embedded In A Variety Of Radio Frequency Remote Control Applications. It Is Suitable For Security Alarm, Wireless Automatic Meter Reading, Home And Industrial Automation, Remote Remote Control, Wireless Data Mission And Other System Fields. Working Frequency:433.92mhz Data Mission Rate 10kbps (ask Modulation) 109dbm High Sensitivity, Receiving Rate 1kbps (ask Modulation) Output Power 10dbm Pcb Ant