ADWA AD111 Standard Professional pH-ORP-Temperature Portable Meter


Up to 2-point calibration with auto buffer recognition in 3 points; HOLD function; Low battery indication;
Temperature measurement and compensation

  • Parameters: pH, ORP, Temperature


AD111 is a compact pH meter featuring automatic pH calibration, HOLD function, low battery indication, temperature measurement and compensation. In addition,
AD111 can measure in the mV range.

pH Specifications

pH range

-2.00 to 16.00 pH

pH Resolution

0.01 pH

pH Accuracy (@25ºC/77ºF)

±0.02 pH

pH Calibration

Automatic, 1 or 2 point, with 3 memorized buffers value

Temperature Compensation

Automatic for pH readings

ORP Specifications

ORP range

±1000 mV

ORP Resolution

1 mV

ORP Accuracy (@25ºC/77ºF)

±2 mV

ORP Calibration

Factory calibrated

Temperature Specifications

Temperature Range

-5.0 to 105.0°C

Temperature Resolution


Temperature Accuracy

±0.5°C up to 60°C / ±1°C (outside)

Additional Specifications

pH Electrode/Probe

AD1230B - epoxy body pH electrode with double junction, BNC connector and 1 m cable (Included)

Temperature Electrode/Probe

AD7662 - Stainless steel temperature probe with 1 m cable (Included)

Hold Function


Low Battery Indication


Auto Shutt-off

After 8 minutes of non-use conserves energy and lengthens battery life-span

Battery Type / Life

4 x 1.5V AA batteries / Approx. 1500 hours of continuous use


70 x 145 x 26 mm


Approx. 200 g

Ordering Information

Adwa AD111 is supplied with AD1230B - pH electrode with epoxy body, double junction, BNC connector and 1 m cable; AD7662 - Stainless steel temperature probe with 1 m cable; AD70004 - pH4 calibration solution in sachet (20 ml); AD70007 - pH7 calibration solution in sachet (20 ml); Batteries (4 x 1.5V, AA alkaline); Instruction manual


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