SD Series 2025 Portable Test Device pH, ORP and EC Meter

Pool ChemicalsCH-KIM-0009-01

The SD Series 2025 Portable Tester is a portable digital instrument that measures pH, ORP, conductivity, TDS, salt and temperature in pool water. It has four models: SD10 pH, SD20 ORP, SD30 EC and SD40 Multi. The display is three-colour, the housing is IP67 protected and it runs for more than 2000 hours on 4 AAA batteries.

Technical Specifications

Specification4 modelsCode CH-KIM-0009-01 - CH-KIM-0009-04

Measurement Type: pH, temperature / ORP, temperature / Conductivity, TDS, salt, temperature / pH, conductivity, TDS, salt, temperature
Measuring range: pH 0.00 - 14.00; pH (mV) -1000 - +1000 mV / ORP -1000 - +1000 mV / Conductivity 0.01 - 20.00 mS/cm; TDS 0.01 - 20.00 ppt; salt 0.01 - 10 g/l / pH 0.00 - 14.00; conductivity 0.01 - 20.00 mS/cm; TDS 0.01 - 20.00 ppt; salt 0.001 - 10 g/l
Sensitivity (resolution): pH 0.01; pH (mV) 1 / 1 mV / Auto range: conductivity 0.1 µS/cm, 1 µS/cm, 0.01 mS/cm; TDS 0.1 ppm, 1 ppm, 0.01 ppt; salt 0.01 ppt / pH 0.01; auto range: conductivity 0.1 µS/cm, 1 µS/cm, 0.01 mS/cm; TDS 0.1 ppm, 1 ppm, 0.01 ppt; salt 0.01 ppt
Measurement accuracy: pH ± 0.01 (±1 digit); pH (mV) ± 0.2% FS / ± 0.2% FS / pH ± 0.01 (±1 digit); pH (mV) ± 0.2% FS; conductivity/TDS/salt ± 1% FS
Calibration points: 1 - 3 / 1
Calibration: USA: 1.68/4.00/7.00/10.01/12.45 pH; NIST: 1.68/4.01/6.86/9.81/12.45 pH / +470 mV (25 °C), Pt Ag/AgCl (3 M KCl) / 84 µS/cm / 1413 µS/cm / 12.88 mS/cm / pH USA: 1.68/4.00/7.00/10.01/12.45; NIST: 1.68/4.01/6.86/9.81/12.45; Con: 84 µS/cm / 1413 µS/cm / 12.88 mS/cm
Limit alarm: Yes / No
Auto-Hold / stability indicator: Yes
Temperature measuring range: 0 - 50 °C
Temperature accuracy: 0.1 °C
Display: 3-colour backlit LCD (blue: measurement, green: calibration, red: alarm)
Protection Class: IP67
Power Source: 4 x 1.5 V AAA batteries
Battery life: > 2000 h
Auto power-off: 8 min
Operating conditions: 0 - 60 °C, 0 - 80% relative humidity (non-condensing)
Dimensions: 180 x 40 x 40 mm
Weight: 151 g
Certification: CE

All figures are manufacturer data; they vary by model.

Compatibility and connections

Measurement: SD10 pH, SD20 ORP, SD30 conductivity/TDS/salt, SD40 all
Calibration: SD20 single point; others 1-3 points
Limit alarm: On SD10 and SD20
Power supply: 4 x 1.5 V AAA, over 2000 hours
Operating conditions: 0-60 °C, 0-80% humidity, non-condensing

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