Feature Highlights: 1. 2km Ultra-Long Wireless Range in Open Areas – Achieves stable communication over distances up to 2km in open environments. 2. Adjustable 415MHz–450MHz Transmission Frequency – Allows flexible frequency tuning within this range for reliable signal performance. 3. Half-Duplex Data Exchange – Enables continuous two-way communication between transmitter and receiver in half-duplex mode. 4. Dual-Process Design with Half-Hole & Pin Layout – Combines half-hole and pin soldering processes for secure and versatile mounting. 5. Embedded or Connector-Based Integration – Can be embedded directly into products or connected via pin headers for easy installation. Product Details: This LoRa wireless transceiver module is built on the SX1278 chip, supporting ultra-long wireless transmission up to 2km at 433MHz. It ensures continuous half-duplex data exchange with ultra-low power consumption, strong anti-interference capability, extended range, and stable communication. Ideal for long-range IoT, remote control, and data transmission applications. Specifications: - Dimensions: 17mm (L) × 16mm (W) - Antenna: 433MHz spring antenna, total length 30mm (pre-soldered) - Crystal Oscillator: 32MHz passive crystal - Main IC: SX1278IMLTRT (QFN28 package) - Pinout (Top to Bottom): Row 1: GND, NSS, MOSI, MISO, SCK, DIO5, DIO4, GND Row 2: ANT, GND, VCC, DIO1, DIO2, DIO3 - Color: Black - Material: Plastic + Metal Package Includes: 1 × LoRa Transceiver Module 1 × Spring Antenna Note: Only the items listed above are included. Slight color variations may occur due to lighting or screen settings. Dimensions may have a tolerance of +/- 1–3cm.