433Mhz HC-12 S14463 SI4438 Wireless Serial Port Module STM8S003F3U6

Power Supply Voltage : 3.2V~5. 5V.(if the modules working long hours in emission state, suggested that when the power supply voltage is greater than 4.5V you need concatenating a 1N4007 diode to avoid module built-in LDO got fever).
Default Communication Distance : about 600 m (communication distance is adjustable up to 1000 m, air baud rate 5000 BPS).
Default Idle Current: 16 mA (modules in different working mode of different current).
Default Working Mode :FU3, baud rate 9600bps, communication channel CHO01(433.4MHz)
Operating Frequency Range (433.4-473.0 MHz, as many as 100 communication channel) maximum 100 mw fired power (can be set)
Module supporting software upgrades.

The HC-12 module has four serial port modes, which are represented by FU1, FU2, FU3 and FU4 under idle state is 3.6mA, 80uA, 1 6mA and 16mA respectively, and the maximum working current is 100mA(under full power emission state).
FU1 mode is a more power-saving mode, the idle working current of the module is about 3.6mA. In this mode, the module can also set the 8 serial port baud rates as shown in the table below, but the air baud rate is unified to 250,000 bps.
FU2 mode is power saving mode, the idle working current of the module is about 80uA. In this mode, the module only supports the serial port baud rate of 1200 bps, 2400 bps and 4800 bps, and the air baud rate is unified to 250,000 bps. (After detection, there is a little bug when transmitting data in this mode, and users are not recommended to use FU2 mode for the time being)
FU3 mode works at full speed and the idle working current is about 16mA.
FU4 mode is ultra-long distance communication mode.

Packing included:
2* 433Mhz HC-12 SI4463/SI4438 Wireless Module Serial Port 1000M