This document is a Product Similarity Declaration from Dragino Technology Co., Limited, submitted to the Federal Communications Commissions (FCC). It pertains to the NB-IoT Sensor product line, specifically model RS485-NB (FCC ID: ZHZRS485N), which was tested by Bay Area Compliance Laboratories Corp. The declaration aims to list a series of related models for marketing purposes, including LDS25-NB, CS01-NB, SE01-NB, DDS75-NB, DDS45-NB, DDS20-NB, MDS120-NB, SPH01-NB, LMS01-NB, WQS-NB, SE0X-NB, WSC2-NB, MDS200-NB, LDS40-NB, LDS12-NB, and DDS04-NB, with both NB and NS variants.
The document asserts that all listed models are electrically identical, with the primary differences lying in the probes used and the enclosure. A table is provided to detail these variations, including probe types such as LiDAR distance sensors, current sensors, soil moisture sensors, distance sensors, non-contact liquid level sensors, soil pH sensors, smoke sensors, and alarms. The table also specifies differences in PCB configurations (with or without charging modules) and battery types. The declaration confirms that no other changes were made to the models and assures responsibility for the accuracy of the information provided.