G-NiceRF RF4432PRO - 1km 868MHz si4432 chip FSK RF module wireless transmitter receiver

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Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Model Number:
fsk rf module RF4432PRO
Frequency options:
433/470/868/915 MHz
Working voltage:
Sleeping current:
< 1uA
TX current:
85mA @20dBm
RX current:
TX output power:
RF data rate:
Working temperature:
Modulation mode:
Small Size:


RF4432PRO - 1km 868MHz FSK RF module wireless transmitter receiver, Original factory!

Product Description

RF4432Pro is the upgraded version of RF4432. The stability, anti-interference has been much improved with the shielding case and improvement of circuit.


RF4432Pro adopts Silicon Lab Si4432 RF chip, which is a highly integrated wireless ISM band transceiver. The features of  high sensitivity (-121 dBm), +20 dBm output power, 10PPM crystal, and good RF matching circuit make this module work well in hot/cold environment with reliable communication and long distance.   





Electrical Specifications:


Supply Voltage Range 1.833.6V
Operating Temperature Range -40 85°C
Current in rx mode  18.5 mA
Current in tx mode@20dBm 85 mA
Current in standby modeRegister values retained, Oscillator OFF 450800nA
Current in shut down modeRegister value lost, Oscillator off  SDN pull high 1550nA
Frequency Range@315MHz285315335MHz
Data RateFSK0.123 256Kbps
Output power 1 20dBm
Rx Sensitivity@data=1.2kbps,Fdev=20kHz -121 dBm




  • Frequency Range: 315/433/868/915(Customizable 240-930 MHZ)
  • Sensitivity up to -121 dBm
  • Data transfer rate:0.123-256 kbps
  • FSK and GFSK Modulation mode
  • 1.8-3.6 V Power supply
  • Ultra-low consumption shutdown mode
  • Digital received signal strength indicator (RSSI)
  • Time wake-up function
  • Excellent antenna match circuit and bi-direction communication
  • Configurable packet structure
  • Preamble detection
  • 64-byte transmit and receive data FiFo
  • Low battery detection
  • Temperature sensor and 8-bit analog-to-digital converters
  • 10PPM crystal with operating Temperature Range:-40 ~ + 85 °C
  • Integrated voltage regulator
  • Frequency hopping
  • Power-on reset function
  • Built-in crystal adjustment function


  • Remote control
  • Remote meter reading
  • Home security alarm and remote keyless entry
  • Sensor networks
  • Industrial control
  • Tire Pressure Monitoring
  • Home automation telemetry
  • Health Monitoring
  • Personal data records
  • Wireless PC peripherals
  • Toy control
  • Tag reader





Pin Configuration:



Pin NumberPin DefinitionsDescription
1GNDConnected to power ground
2GPIO0Connected to the antenna switch on the module.
Control antenna in Tx, Rx and standby mode together with GPIO1
3GPIO1Connected to the antenna switch on the module.
Control antenna in Tx, Rx and standby mode together with GPIO0
4GPIO2GPIO2 of Si4432
5VCCPositive supply 1.8--3.6V
6SDOSerial data out for SPI interface
7SDISerial data in for SPI interface
8SCLKSerial data clock for SPI interface
9nSELSerial data selection for SPI interfaces.
10nIRQInterrupt output
11SDNPower down control.
SDN = 1, power down 
SDN = 0, normal working.
12GNDConnected to power ground
13ANTFrom 50 ohm coaxial antenna
14GNDConnected to power ground




Mechanical Demensions(mm):



Packaging & Shipping


Company Information

NiceRF Wireless Technology Co.,ltd is engaged in researching, developing, producing and selling IOT(internet of things) products. 


We devoted ourselves on providing good RF modules, walkie talkie modules and integrated digital sensor modules. 


Meanwhile, ODM and OEM projects are welcomed. 


With more than 10 years experience of product design in RF and sensors, we have earned a good reputation among our customers. 
Our Services

1, Any inquiries will be replied in 12 hours.

2, OEM/ODM service:

Customer's own logo is available;
We help customer realize their own thinking, idea, design;

3, After-sale Service:

All products passed QC before shipping;
All products will be well-packed before shipping;
All products have 1 year guarantee. Damaged item is free to change or return in warranty period.

4, Payment terms: T/T,Western Union/paypal/MoneyGram

Any other question, please feel free to contact Jet Wu!

Skype: sales168_1 

Trademanager: cn1510436027


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