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Ohaus AQUASEARCHER™ AB33M1 pH + EC Bench Meter

SKU: AB33M1-B~ea

SKU: AB33M1-B~ea

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Ohaus AQUASEARCHER™ AB33M1 Standard Multi-Parameter Bench Meter

OHAUS AquaSearcher™ AB33M1 benchtop meter is designed to be reliable, efficient and user friendly. The i-Steward ensures repeatable and consistent measurement accuracy for optimal peace of mind. Large LCD display and touch keypad makes changing the parameters, executing setup, and performing calibration as simple as using a smartphone.

i-Steward Indicators include the electrode condition, “Electrode Dirty/Broken,” and reminder when meter needs recalibration. Perform up to a 5-point calibration using automatic buffer recognition of 5 predefined buffer groups. Calibration log stores ten most recent calibrations. Compact stirrer can be used to uniformly mix solutions to get fast and repeatable results at no additional cost. 

• With multifunctional touch keypads, AB33 makes measurement simple and fast
within 3 steps. The intelligent i-Steward monitors the condition of electrodes,
ensuring accuracy of the results.
• Able to store up to 1000 items in its internal memory, AB33 allows for efficient
data documentation. Standard RS232 and USB interface allows
connection to external devices for expanded storage.
• Auto endpoint mode and auto buffer recognition makes pH calibration
easy. Auto temperature compensation, adjustable TDS factor and two kinds of
cell conductivity probe compatibility are all features well suited for universal
laboratory applications.
• Adjustable TDS Factor - The factor that relates conductivity to total dissolved solids is based on the type of sample being measured. To have correct temperature compensation when measuring conductivity, the linear compensation coefficient adjusts by automatic temperature compensation. Selectable reference temperatures of 20 or 25 ºC for temperature compensated conductivity readings.

Packages -  Available in two configurations:
 a-AB33M1-B a-AB33M1-F
  • a-AB33M1 Benchtop Meter
  • Stand-Alone Electrode Holder
  • No Electrodes (STCON7)
  • a-AB33M1-B Package
  • ST310 pH Electrode
  • STCON3 Probe
  • pH Buffer Mini Kits (4 × 50mL)
  • Conductivity Standard Kits
    (1413 uS/cm, 4 × 50mL)

Measurement Range -2.00 – 20.00 pH;  -5 °C – 110 °C;  -2000.00 – +2000.00 mV
Measurement Resolution ;  0.1 °C;  0.01 pH
Accuracy ±0.3 °C;  ;  ±0.01 pH
Display LCD with backlight &  one-line dot matrix
Electrode ST310 (Included);  STCON3 (Included)
Accuracy ± (mV) 0.5 mV
Accuracy ± (Temperature) 0.3 °C
Conductivity accuracy (±) 0.5 %
Conductivity measuring range 0.01 μS/cm – 500 mS/cm
Dimensions 8.3 in x 2 in x 5.6 in (210 mm x 51 mm x 142 mm) (LxHxW)
Net Weight 1.1 lb (0.5 kg)
Parameter pH / Cond
pH accuracy (±) 0.01
Power AC Adapter (Included)
Resistivity measuring range 2 Ohm ;  100 MOhm
Resistivity resolution 0.01 Ohm
Working Environment 5°C – 40°C, 80% RH, Non-condensing

Additional Literature:
Aquasearcher Data Sheet -EN
Aquasearcher Data Sheet - FR
Quick Start Guide