Features: 1. Using LoRa modulation and demodulation technology, it has anti-interference and long-distance communication characteristics 2. Using the original SX1262 scheme, it has - 148dBm receiving sensitivity and 22dBm transmitting power. Support preamble detection, with CRC, automatic subcontracting, 960 byte cache function 3. Support LBT sending, RSSI output, AT instruction set setting. Support AES encrypted communication to ensure data transmission security 4. Support multi-level relay networking to increase wireless communication distance. Support upper computer configuration and firmware upgrade, and support customized firmware in large quantities 5. High quality components such as TCXO are used for stable operation under harsh conditions Specifications: SX1262 LoRa DTU-HF: HF version frequency is 850~930MHz; Applicable to Europe, America and Oceania Communication interface: Interface type: terminal block: RS485 x 1,RS422 x 1; DB9 male: RS232 x 1; SMA-KE female: 6dBi omnidirectional antenna x one RS485: Anti surge, over-current protection (120R balance resistance pin reserved) RS232: TVS tube protection, surge and anti-static protection RS422: Anti surge, over-current protection (120R balance resistance pin reserved) Wireless parameters: Frequency band: Sub GHz (850~930MHz) Signal modulation: LoRa Encryption type: AES Transmission power:+22dBm Max Receiving sensitivity: - 148dBm Serial port parameters: Baud rate: 1200~115200bps Check bit: None, odd check, even check Data bits: 8-9 bits Flow control: no flow control Size: 77.0 x 24.0 x 64.2mm Material: aluminum alloy colour: black Package Contents: 3 x SX1262-LoRa-DTU-HF 3 x 868/915M sucker antenna