pH, ORP, conductivity, TDS
One family covers pH and ORP (PH models) and conductivity, TDS and salinity (EC models) on the same bench.
Benchtop pH and Conductivity meters
Bench pH, ORP and conductivity you can defend: OHAUS AquaSearcher AB23 and AB33
AB23PH pH
0.00 to 14.00 pH, 0.01 pH resolution, +/-0.01 pH
AB23PH ORP
-1999 to 1999 mV, 1 mV resolution, +/-1 mV
AB23EC conductivity
00.0 uS/cm to 199.9 mS/cm, +/-1 % reading +/-3 LSD
AB23 display and memory
5-inch backlit segment LCD, 99-item memory
AB33PH pH
-2.00 to 16.00 pH, 0.01 pH resolution, +/-0.01 pH
AB33EC parameters
Conductivity, TDS, salinity and resistivity, +/-0.5 % reading +/-2 LSD
OHAUS builds the AquaSearcher AB23 and AB33 bench meters as the working instruments of a routine laboratory: pH and ORP in the PH versions, conductivity, TDS and salinity in the EC versions, all to 0.01 pH and with automatic temperature compensation. The AB23 keeps it simple with a 5-inch backlit display, auto buffer recognition and a 99-reading memory. The AB33 adds a 6.5-inch display, 1,000-reading memory, RS232 and USB output, and i-Steward electrode monitoring with a calibration-due alarm.
Key benefits
0.01 pH accuracy
Both AB23PH and AB33PH are specified at +/-0.01 pH with 0.01 pH resolution.
Auto buffer recognition
Automatic buffer recognition and automatic temperature compensation remove two common sources of operator error.
i-Steward on AB33
The AB33 monitors electrode condition and raises a calibration-due alarm before results start drifting.
Results you can export
99-reading memory on the AB23; 1,000 readings plus RS232 and USB output on the AB33.
Applied in
Routine laboratory pH measurement
Purified and process water testing
Drinking water and wastewater analysis
Food and beverage quality control
Teaching laboratories
Tell us whether you need pH or conductivity and we will quote the right model.
Tell us what you need. We reply with pricing, lead time and the manufacturer datasheet — usually the same working day.
