✍ The 412-440 MHz frequency spectrum falls around the ISM band of 433.050 MHz to 434.790 MH for low power devices (LPD433). The band is differently allocated and licensed in different regions. In most European countries under CEPT administration, 433 MHz is free to use on short-range, low power devices with varying legal specifications.
 
This band of frequencies is popular in wireless remote controls and IoT (Internet of Things) devices. This frequency is favored for its low power consumption, and cheaper assembly components compared to alternative higher frequency ISM bands.
✍ Common applications include:
IoT (Internet of Things)
Wireless instruments
Remote control devices
RFID devices 
Amateur radio
Amateur satellites
Government radar devices

✍ Long-distance
As a UHF frequency, 433 MHz signal propagation is predominantly by line of sight, with some ground reflection. With clear and unobstructed exposure of the communicating antennas, transmission distances of tens kilometers can be achieved, with further distances possible if repeaters are used. Physical structures like hills and tall buildings will impede 433 MHz frequencies, but they are able to penetrate walls and provide indoor reception.

✍ Low energy
Radio propagation at the 433 MHz frequency has low energy cons

▼ Package Included:
1 x Antenna