Portable pH/ORP Meter
The HI 9125 is a waterproof pH meter that can utilize ORP (oxidation reduction potential) electrodes.
A large dual-level LCD displays both the pH and temperature along with an operational guide. Graphic symbols are displayed to help the users during the calibration process.
The pH calibration procedure is automatic with five memorized pH buffer values and buffer recognition to simplify the calibration process.
This meters utilizes the HI 1230B double junction pH electrode. The double junction helps to minimize junction contamination for accurate, consistent results.
HI 9125 is supplied with HI 1230B pH electrode, HI 7662 temperature probe, HI 70004 pH 4.01 buffer solution sachet, HI 70007 pH 7.01 buffer solution sachet, 100 mL plastic beaker, batteries, instructions and hard carrying case.
Range pH -2.00 to 16.00 pH
ORP ±699.9 mV; ±1999 mV
Temperature -20.0 to 120.0°C / -4.0°F to 248.0°F
Resolution pH 0.01 pH
ORP 0.1 mV; 1 mV
Temperature 0.1°C / 0.1 °F
Accuracy @ 20°C pH ±0.01 pH
ORP ±0.2 mV; ±1 mV
Temperature ±0.4°C/±0.8°F (excluding probe error)
Calibration pH automatic, one or two point with five standard buffer values (pH 4.01, 6.86, 7.01, 9.18, 10.01)
Offset ±1 pH
Slope from 80 to 108%
Compensation automatic or manual, -20.0 to 120.0°C / -4.0 to 248.0°F without temperature probe
Electrode HI 1230B PEI body pH electrode with BNC connector and 1 m (3.3’) cable (included)
HI 7662 stainless steel temperature probe with 1 m (3.3’) cable (included)
Input Impedance 1012 Ohm
Battery Type / Life 1.5V AAA (3) / approximately 200 hours of continuous use. Auto-off after 20 minutes of non-use (can be disabled)
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions 185 x 72 x 36 mm (7.3 x 2.8 x 1.4’’)
Weight 300 g (10.6 oz.)
HI 1230B Combination pH Electrode, for Field Applications
HI 3131B Refillable Combination ORP Electrode for Titration and Laboratory Use
HI 7662 Stainless Steel Temperature Probe
HI 5004L pH 4.01 buffer solution
HI 5007L pH 7.01 buffer solution
HI 5010L pH 10.01 buffer solution
HI 70300L Electrode Storage Solution
1 x 500 mL bottle
HI 7061L General Purpose Cleaning Solution
1 x 500 mL bottle