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Unlock advanced smart home automations with the $8.9 DFRobot C4002 mmWave sensor. Learn to extract raw speed, energy, and direction data using ESPHome.

Need an ORP sensor? We compare entry-level Arduino meters, 24/7 online probes, and IP68 industrial RS485 sensors to help you build the best water IoT system.

This guide provides a side-by-side comparison and selection analysis for 5 core Electrical Conductivity (EC) sensors from DFRobot, helping you quickly identify the most suitable product based on measurement range (K-value), application scenario (industrial/laboratory), and system architecture (Analog/RS485).