433 mhz RF wireles transmiter and reciever kit .

These RF Modules are designed to serve as a tool for electronic design engineers, developers, hobbyists and students to perform wireless application. These 433MHz Receiver/Transmitter pair is an Arduino-compatible expansion board that gives your Arduino the ability to receive and decode radio signals transmitted on the unlicensed 433MHz band using ASK (Amplitude Shift Keying) or OOK (On-Off Keying) modulation. ASK signals at 433MHz are very commonly used by consumer electronics devices including weather stations, power consumption meters, security systems, and home automation controllers.