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Laboratory Equipment  » Meters & Testers  » pH Meters  » pH Meters - Portable  » Portable pH/ORP/mV Temperature Meter

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Portable pH/ORP/mV Temperature Meter Photo
Portable pH/ORP/mV Temperature Meter

50-HI991003 is protected in a waterproof casing for use in humid and wet environments. It also features a dual level LCD that displays pH or ORP and temperature (in degree C or F). Automatic pH calibration can be performed with 5 memorized buffers (for NIST or standard calibration). 50-HI991003 provides over 1500 hours of battery life and an 8 minute auto-off period to save battery power.

SKU Description Units Price Quantity
50-HI991003 Portable pH/ORP/mV Temperature Meter 1 $436.70

With today's high level of demand for quality and accuracy, it is critical, when measuring pH, to know the status of the electrode, since it is the most important element of the pH measurement system. An old, out of specifications pH electrode can result in erroneous pH measurements that can seriously damage the process. The sensor check feature consists of a mV pH scale that shows the characteristics (slope and offset) of the sensor, allowing the user to determine if the electrode is in good condition. In several countries, local agencies require pH electrodes to have slope % as high as 95%. This can only be done with the sensor check feature.

50-HI991003 is supplied complete with 50-HI1297D pH/ORP/temperature electrode, 3 x 1.5V AA batteries, carrying case and instructions.

Specifications 50-HI991003


-2.00 to 16.00
mV ±825 mV
ORP ±1999 mV
Temp -5.0 to 105.0°C or 23 to 221°F
Resolution: pH 0.01
mV 1 mV
ORP 1 mV
Temp 0.1°C or 0.1°F


pH ±0.02
mV ±2 mV
ORP ±2 mV
Temp ±0.5°C up to 60°C, ±1°C up to 105.0°C
±1.0°F up to 140°F, ±2°F up to 221°F
pH Calibration: Automatic 1 or 2 points with 2 sets of standardized buffers (4.01, 7.01, 10.01 or 4.01, 6.86, 9.18)
Temp Compensation Automatic from -5.0 to 105.0°C (23 to 221°F)
Electrode 50-HI1297D combination amplified pH/ORP/temperature electrode with DIN connector and 1 m (3.3.) cable (included)
Battery Type / Life 3 x 1.5V AA / approximately 1500 hours of continuous use. Auto-off after 8 minutes
Environment 0 to 50°C (32 to 122°F); RH 100%
Dimensions 150 x 80 x 36 mm (5.9 x 3.1 x 1.4.)
Weight 245 g (8.6 oz.)

ScienceLab offers Portable pH/ORP/mV Temperature Meter and many other laboratory products and chemicals for all of your research project needs. Whether you work in a lab setting or perform testing in the field, we have the products you need, from pH Meters - Portable, glassware, chemicals, or testing equipment. We care about our customers' needs, if you are unable to find the scientific product your looking for then please contact us for assistance at 800-901-7247.
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