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Traceable® PH/ORP Meter

Additional Views

  • Compact instrument fits in the palm of your hand
  • Accuracy: ±0.02 pH
  • 25 point memory storage with time/date stamp
  • Waterproof (IP67)
  • Triple Display shows pH or ORP measurement, temperature and time\date
  • Ideal for wastewater, water quality and environmental applications

Traceable To NIST for Accuracy
To assure accuracy an individually serial-numbered Traceable® Certificate is provided from our ISO/IEC 17025:2005 (1750.01) calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology).

Thomas No. 1189Q97 Traceable® pH\ORP Meter

Thomas No. 1189Q98 Probe Extension Cable

Thomas No. 1189Q99 Replacement Probe

Please note: The aforementioned A2LA accreditation belongs to the manufacturer, not Thomas Scientific.

pHRange: 0.00 to 14.00 pH units
Resolution: 0.01 pH units
Accuracy: ±0.02 pH units
ORPRange: -1800 to 1800 mV
Resolution: 0.1mV <1000mV (1mV 1000mV)
Accuracy: ±20 mV
TemperatureRange: 0 to 60ºC or 32 to 140 ºF (selectable)
Resolution: 0.1º (1º when >100º)
Accuracy: ±1ºC
Standard ElectrodePolycarbonate body housing, 12mm diameter, 4.4”/111mm length, single-junction gelled Ag/AgCl reference (sealed) with ceramic pin/pellon junction, ASI type VIII glass, full range pH sensor, 0.095” Platinum disc ORP sensor, and integral thermistor. Also Includes 16mm collar for electrode stand use.
Operating Range0-60ºC
Power Requirements2x CR2032 3V Batteries (included)
Battery Life>25 Hours Typical (without use of back-lighting)
Battery Saver FeatureAfter 8 minutes of non-use, low battery indicator at <10% remaining
Dimensions10.25 inch (26 cm) x 2.5 inch (6.4 cm) x 1 inch (2.5 cm)
Weight: 4.5 ounces /(127 grams)
CalibrationUser-selected 1, 2 or 3-point calibration
Automatic Buffer RecognitionUser-selected standard buffer sets:
USA 4.01 / 7.00 / 10.01 or NIST 4.01 / 6.86 / 9.18

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