SI4432 Wireless Transceiver (433M,1.5KM Range)


Availability: Out of stock SKU: NWL1047 Category: Tags: , , ,



  • Shield-Protected
  • Ultra-thin ultra-small (16.5 × 17mm)
  • Good harmonics too easy to FCC / CE certification
  • The penetration ability (measured through 8 floors)
  • Using the latest version of the U.S. SI4432 IC, stable performance


  • Frequency range: 433.92M
  • Sensitivity up to-121dBm
  • Maximum output power: 20dBm
  • Ddata transfer rate:0.123-256kbps
  • FSK, GFSK and OOK modulation
  • power supply: 1.8-3.6 V
  • Ultra-low-consumption shutdown mode
  • Digital received signal strength indication (RSSI)
  • Wake time
  • Automatic matching and two-way antenna switch control
  • Configurable packet structure
  • Preamble detection
  • 64-byte send and receive data register (FIFO)
  • Low power detection
  • 8-bit ADC and temperature sensor
  • Operating temperature range: -20 ~ +60 ° C
  • Integrated voltage regulator
  • Frequency hopping
  • Power-on reset function
  • Built-in lens adjustment


  • Remote Control; Remote meter reading; Home security alarm and remote keyless entry; Industrial Control; Telemetry Home Automation; Personal data records; Toy Control; Sensor networks; Tire pressure monitoring; Health Monitoring; Wireless PC peripherals; Tag readers

Additional information

Weight 0.005 kg

2 reviews for SI4432 Wireless Transceiver (433M,1.5KM Range)

  1. 5 out of 5

    Docedison (verified owner)

    This one is the Good One. Shielded for unwanted emissions, easy to mount an SMC connector and 433 MHz antenns’a @ $2.00 – $4.00 make the best possible use of the +20 DBM (100 mW of power). With the antenns’a away from city noise and mounted about 5 feet in the air vertically the radios ‘should’ be capable of 2 km or more I’ve measured 2.3 km (about 1.5 Mi).


  2. 4 out of 5

    Ton Visch (verified owner)

    Happy with your product

    I am Using two SI4432 at 3.3V with DIY 5V Arduino and 74HC4050 interface

    Software : RadioHead library
    #include // I2C library
    driver.setFrequency(434.0, 0.05);
    driver.setTxPower(RH_RF22_TXPOW_20DBM ); // sender +20dbm
    driver.setModemConfig(RH_RF22::GFSK_Rb2_4Fd36); ///< GFSK, No Manchester, Rb = 2.4kbs, Fd = 36kHz

    antenne DIY dipol 2x166mm at 1.5m height
    sending data packets receiving OK
    measured range 3 km nearly open field -94dBm
    using 140mA for 1 Hour from Lipo 7.3V battery

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