Item no. HI-991003
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Portable pH/pH-mV/ORP and Temperature Meter
pH Sensor Check™; Allows users to check electrode status at any time
Multi-level LCD display; Display the current measurement simultaneously with the current temperature.
On-screen tutorial messages
Automatic Temperature Compensation
Automatic one or two point calibration
HI 1297 pH/ORP/Temperature and HI 1296 pH/Temperature probe in titanium enclosure
BEPS; (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings
Battery % displayed on startup.
Compact, heavy-duty, and water resistant
HI-991003 is ideal for plating baths, wastewater, swimming pool and spa water quality and environmental applications.
HI 991003 is a portable pH/pH-mV/ORP/temperature meter with our unique Sensor Check™ feature that allows the user to determine the electrode status at any time.
The HI 1297D pH/ORP/temperature probe features an easy to clean recessed tip that prevents solids in solutions from collecting on the sensor. The AISI 316 stainless steel and titanium body of these probes function as a potential matching pin for increased stability of readings and extended sensor life.
This compact instrument fits in the palm of your hand and the bottom probe connection ensures the electrode cable doesn’t get in your way.
HI991003 is supplied with HI 1297D pH/ORP probe with internal temperature sensor, batteries, instructions and rugged carrying case.
|Accuracy mV||±2 mV|
|Accuracy pH||±0.02 pH|
|Accuracy pH-mV||±1 mV|
|Accuracy Temperature||±0.5°C (up to 60°C), ±1°C (outside); ±1.0°F (up to 140°F), ±2°F (outside)|
|Battery Type / Life||3 x 1.5V AA / approx. 1500 hours of continuous use^ auto-off after 8 minutes of non-use|
|Electrode||HI 1297D, amplified, combination pH/ORP electrode with internal temperature sensor, DIN connector and 1 m (3.3') cable (included)|
|Environment||0 to 50°C (32 to 122°F); RH max 100|
|pH Calibration||automatic, 1 or 2 point with 2 sets of memorized buffer values (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)|
|Range mV||±1999 mV|
|Range pH||-2.00 to 16.00 pH|
|Range pH-mV||±825 mV|
|Range Temperature||-5.0 to 105.0°C / 23.0 to 221.0°F|
|Resolution mV||1 mV|
|Resolution pH||0.01 pH|
|Resolution pH-mV||1 mV|
|Resolution Temperature||0.1°C / 0.1°F|
|Temperature Compensation||Automatic, -5 to 105°C (23 to 221°F)|