Geeetech 433Mhz RF Transmitter and Receiver Kit for Your Experiment
Frequency: 433Mhz
Modulation: ASK
Receiver Data Output: High - 1/2 Vcc, Low - 0.7v
Transmitter Input Voltage: 3-12V (high voltage = more transmitting power)
For more information, please check out:http://www.geeetech.com/wiki/index.php/433Mhz_RF_link_kit