Amazon.com : 433MHz Rf Weather Station Alarm Clock Wireless Digital Thermometer Hygrometer Temperature Humidity Measurement TS-H105 Indoor Outdoor Humidity Monitor : Patio, Lawn & Garden
433mhz RF Relay Transmitter and RF Receiver Superheterodyne 433 mhz Module with Antenna for Arduino Uno Wireless DIY Kit: Amazon.com: Industrial & Scientific
RF Link Transmitter - 434MHz - WRL-10534 - SparkFun Electronics
Amazon.com : 433MHz Rf Weather Station Alarm Clock Wireless Digital Thermometer Hygrometer Temperature Humidity Measurement TS-H105 Indoor Outdoor Humidity Monitor : Patio, Lawn & Garden
Trying radio RF 433Mhz, it's working with these 1$ transmitter/receivers, but not really great (poor range). What better solution did you use? : r/arduino