You can measure pH, electrical conductivity (EC), total dissolved solids (TDS) and temperature in a single instrument. It is waterproof with many advanced features.

Features

• Measures four parameters- pH, electro-conductivity (EC), total dissolved solids (TDS) and temperature.
• Two buttons allow selection from a range of calibration buffers and the temperature scale (°C or °F) as desired.
• The housing is waterproof and rated for IP 67 conditions.
• The multi-parameter probe, includes pH, EC/TDS and temperature in one convenient, rugged handle.
• Probe's extendable cloth junction extends its usefulness.
• Includes different TDS factors from 0.45 to 1.00, and a range of temperature coefficients (ß) from 0.0 to 2.4%. Also selectables are standardized buffer recognition values.
• To ensure against interference from transient electrical noise, a solid-state amplifier is integrated into the probe.

Specifications

pH Range                          0.00 to 14.00 pH
EC Range                          0 to 3999 µS/cm
TDS Range                        0 to 2000 ppm (mg/L)
Temperature Range        0.0 to 60.0°C (32.0 to 140.0°F)
pH Resolution                   0.01 pH
EC Resolution                   1 µS/cm
TDS Resolution                 1 ppm
Temperature Resolution 0.1°C (0.1°F)
pH Accuracy                       ±0.01 pH
EC Accuracy                       ±2% F.S
TDS Accuracy                     ±2% F.S
Temperature Accuracy     ±0.5°C (±1.0°F)
TDS Conversion Factor    Selectable 0.45 to 1.00 with 0.01 increments (default 0.50)
pH Calibration                    Automatic at 1 or 2 points with 2 sets of memorized standard
                                              (pH 4.01/7.01/10.01 or 4.01/6.86/9.18)
EC/TDS Calibration           Automatic, 1 point at 1382 ppm (CONV 0.5)
                                              at 1500 ppm (CONV 0.7)
                                              at 1413 µS/cm (others)
pH Temperature                Automatic
Compensation
EC/TDS Temperature       Automatic with selectable ß from 0.0 to 2.4%/°C with 0.1 increments
Compensation
Probe                                   pH/EC/TDS/T, DIN connector, 1 m (3.3') cable (included)
Battery Type / Life              4 x 1.5V AAA / approx. 500 hours of continuous use
Environment                       0 to 50°C (32 to 122°F); RH max 100%
Dimensions                       150 x 80 x 36 mm (5.9 x 3.1 x 1.4"")
Weight                                 210 g (7.4 oz.)

Supplied with

• Spare Electrode with 1m cable
• Batteries
• Rugged carrying case 
• Instructions Manual