The ProCon C500 Series is an extremely robust corrosion-resistant controller for conductivity, resistivity, TDS, and salinity. Two models available: C500 with single input and single display, C520 with dual input and dual display. The modular design provides first measurement values in under one minute.

Features include SimplCal one-minute calibration, 400-day datalogging with trend chart display, intelligent stepping menu, and password protection. Three 5A relay outputs, 4-20mA, and RS485 Modbus RTU communication are included with no extra modules needed. External cord grip wire connector combo eliminates internal wiring. Active red alarm LED alerts out-of-bounds readings and indicates when cleaning or replacement is required.

Conductivity range 0-500 mS/cm with ±0.5% accuracy, resistivity 0-18.25 MΩ/cm, TDS 0-250 g/L, salinity 0-700 ppt. IP65 enclosure rated for harsh environments. Mounting options: panel, wall, or pipe. Operating temperature -20 to 70°C. Applications include process control, water quality, sanitization, neutralization, effluent monitoring, pool/spa, aquaculture, and cooling towers.