20Pcs/1pc HC-12 433Mhz SI4438 SI4463 Wireless Serial Port Module 1000m UART 3.3V/5V TTL Level With Antenna Bluetooth-compatible
SPECIFICATIONS
1KM: 1000m 433M hz 433 Mhz
433Mhz HC-12 SI4463 Wireless: Serial Port Module 1000m Replace Bluetooth-compatible
Application: Computer
Brand Name: EC Buying
Condition: New
Dissipation Power: low
HC-12 SI4438/4463 SI4463: 433Mhz Wireless Serial Port Module 1000m
HC-12 SI4463 433Mhz Wifi Wireless Serial Port Module: HC12 1KM 1000m 433MHz Receiving and Transmitting Board PCB
High-concerned chemical: none
Operating Temperature: normal
Origin: Mainland China
Package: Module
Smart Electronics Experiment: Switch And Sensor For Arduino STM32
Supply Voltage: 3.2~5.5V PCB Board
Type: Voltage Regulator
Wifi Wireless Serial Port Module: receiving and transmitting Module
is_customized: Yes


Power supply voltage : 3.2 V -- 5.5 V.(if the modules working long hours in emission state, suggested that when the power supply voltage is greater than 4.5 V , 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).
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)



- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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