Dass167 2021 Jun 2026

While "DASS167 2021" is the most widely available revision as of late 2024, it is important to verify the exact part number suffix. Manufacturers often add letters like to indicate a minor board spin (e.g., a different oscillator component). Always request the firmware version 2.1 or higher when purchasing surplus or refurbished units, as early 2021 production runs had a patchable but annoying Modbus TCP addressing bug.