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.
|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|
|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)|
|Slope||from 80 to 108%|
|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.)|