Amazon UCEC  
19-11-2017 03:31 pm
UCEC XY-MK-5V / XY-FST 433Mhz Rf Transmitter and Receiver Module Link Kit for Arduino/Arm/McU/Raspberry pi/Wireless DIY(6-pack)
TX Working voltage: 3V-12V. Working current: 20-28mA.
Resonance mode: sound wave resonance (SAW)
Modulation mode: ASK /OOK
RX Working voltage: 5.0VDC. Static current:4MA
Working principle: single chip superregeneration receiving
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