DFRobot (DFR0300) Analog Electrical Conductivity Sensor Board, DFRobot DFRduino UNO V3.0(R3) Develop

The DFRobot DFR0300 is a complete EC measurement kit designed to evaluate the electrical conductivity of aqueous solutions for water-quality monitoring. It features plug-and-play compatibility with 3.3V/5V microcontrollers (including Arduino) and an easy-to-use software library with two-point calibration, automatic buffer recognition, and temperature compensation.

The kit includes a laboratory-grade EC probe (K=1.0) with a detection range of 020 mS/cm (recommended 115 mS/cm). A hardware filtering circuit reduces signal jitter, while reduced probe polarization improves accuracy and longevity. Typical uses include water quality analysis, aquaculture, hydroponics, and aquaponics.

Key Specifications

• Input voltage: 3V5V

• Output voltage: 03.4V

• Accuracy: ±5%

• Board size: 42 × 32 mm

• Temperature range: 040°C

• Probe life: ~0.5 year (use-dependent)

• Probe cable length: 1 m

Package Includes

Conversion board, laboratory-grade EC probe (K=1), 1413 µS and 12.88 mS buffer solutions (two each), analog sensor cable, waterproof gaskets, BNC cap, screws, and standoffs.

Notes

The probe is laboratory-grade and not intended for long-term immersion; clean after each use.