SI4432 Wireless Transceiver (433M,1.5KM Range)

(2 customer reviews)


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. 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. 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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