OMEGA CDH-7021 Multi-variable Water Quality Testers (0 ~ 1999 µS, 0 ~ 90°C)

Range Conductivity: 0 to 1999 µS, 0.01 to 19.99 mS

Range TDS: 0 to 999 ppm, 1.00 to 9.99 ppt

Range Salt : 0 to 999 ppm, 1.00 to 9.99 ppt

Range Temperature : 0 to 90°C (32 to 194°F)

Accuracy Conductivity : ±2% FS

Accuracy TDS: ±2% FS

Accuracy Salt: ±2% FS

Accuracy Temperature : ±0.3°C (0.54°F)

Resolution Conductivity :1 µS/0.01 mS

Resolution TDS: 1 ppm/0.01 ppt

Resolution Salt:: 1 ppm/0.01 ppt

Resolution Temperature : 0.1°C (0.2°F)

ATC : 0 to 50°C (32 to 122°F)

Calibration : 0, 1413 µS, 12.88 mS

Power: (4) 1.5 Vdc “AAA”/UM-4 batteries (included)

User Manual