HC-12 433Mhz SI4463/SI4438 Wireless Serial Port Module

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  • 433Mhz SI4463/SI4438 1000M HC-12 Replace Bluetooth Antenna
  • Power supply voltage : 3.3V
  • Default communication distance : about 600 m
  • Default idle current: 16 ma
  • Module size: 27.8mm*14.4mm*4mm


  • Power supply voltage : 3.3V.(if the modules working long hours in emission state, suggested that when the power supply voltage is greater than 4.5 V you need connecting 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).
  • Module size: 27.8mm*14.4mm*4mm.
  • 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.
  • Default factory Settings: working mode FU3, baud rate 9600 BPS, communication channel CH001 (433.4 M)