Säljer en SL4300-X2 433MHz Se: https://etn.se/index.php/50006

Features

Embedded protocol
Very long range
Low power consumption
2.2 – 3.6V voltage supply
50 Ohm antenna impedance
UART communication
Automatic address check
Automatic CRC check
Integrated antenna (model 2)
Digital signal strength indicator
Clear Channel Assessment
188 bytes RX and TX buffers
Point-to-Multipoint
Very small size 38x12x3 mm