HC-12 Wireless Serial Port Microcontroller 433Mhz Max 100mW 1000M Distance Wireless Module Replace DC3.2-5.5V
 
Product Application
Wireless sensor
Community building security
Robot wireless control
Industrial remote control and telemetering
Automatic data acquisition
Container information management
POS system
Wireless acquisition of gas meter data
Vehicle keyless entry system
PC wireless networking
 
Product Features
Long-distance wireless transmission (1,000m in open space/baud rate 5,000bps inthe air)
Working frequency range (433.4-473.0MHz, up to 100 communication channels)
Maximum 100mW (20dBm) transmitting power (8 gears of power can be set)
Three working modes, adapting to different application situations
Built-in MCU, performing communication with external device through serial port
The number of bytes transmitted unlimited to one time
Update software version through serial port
 
Resources: 
1. HC-12 Wireless Serial Port Communication Module datasheet
2. Arduino and HC-12 Long Range Wireless Communication Module
3. Understanding and Implementing the HC-12 Wireless Transceiver Module