This attestation letter from Dragino Technology Co., Limited confirms the Bluetooth Low Energy (BLE) compliance of their NB-IoT Sensor product line. The letter addresses the Federal Communications Commission (FCC) and details that the Bluetooth function of the specified sensor models exclusively supports the BLE 1M mode for marketing purposes.
The document lists a comprehensive range of model numbers, including RS485-NB, LDS25-NS, CS01-NB, SE01-NS, DDS75-NB, DDS45-NS, DDS20-NB, MDS120-NB, SPH01-NB, LMS01-NS, WQS-NB, SE0X-NB, WSC2-NB, MDS200-NB, LDS40-NB, LDS12-NB, and DDS04-NS. It explicitly states that other Bluetooth modes have been disabled by the manufacturer within the software, preventing end-users from activating them.
The FCC ID for these devices is identified as ZHZRS485N. The letter is signed by Edwin Chen, Manager at Dragino, and dated January 9, 2025. This document serves as an official declaration regarding the Bluetooth capabilities of Dragino's NB-IoT Sensor product line for regulatory compliance.