Packing list:

• 2pcs 433MHz RF4431

RF4431 adopts Silicon Labs Si4431 RF chip, which is a highly integrated wireless ISM band transceiver chip. Extremely high receive sensitivity (-121 dBm) and +13 dBm output power ensure that the covering of the range and improve the data link performance. Built-in antenna diversity and the hopping function can be used to aggressively improve the performance.

Features:

• Frequency Range: 433/868（Customizable 240-930 MHZ）
• Sensitivity up to -118dBm
• Data transfer rate：0.123-256 kbps
• FSK，GFSK and OOKModulation mode
• 1.8-3.6 V Power supply
• Ultra-low consumption shutdown mode
• Digital received signal strength indicator (RSSI)
• Timed wake-up function
• The antenna automatically match and two-way switch control
• Configurable packet structure
• Preamble detection
• 64-byte transmit and receive data register（FIFO）
• Low-power detection
• Temperature sensor and 8-bit analog-to-digital converters
• Operating Temperature Range：-40 ~ + 85 °C
• Integrated voltage regulator
• Frequency hopping
• Power-on reset function

• Built-in crystal adjustment function Applications:

• 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