Plating PH Portable Meter
- Hanna instruments - HI99131
- Designed for use in plating baths
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Plating PH Portable Meter - HI99131
The HI99131 is a waterproof, portable pH and temperature meter specifically designed for use in plating baths. The HI629113 pre-amplified, double junction pH probe features a recessed flat tip that is easy to clean and prevents solids in solutions from collecting on the sensor. The titanium body of the HI629113 functions as a potential matching pin for increased stability of readings and extended sensor life.
Unbreakable Titanium Body

Titanium construction provides an unbreakable structure and allows the transfer of heat to the internal temperature sensor for rapid temperature compensation.
Maintenance-Free, Gel-Filled Electrode
No fill solution required.
Features
- Automatic Temperature Compensation
- One or two-point automatic calibration
- BEPS – Alerts the user of low battery power that could adversely affect readings
- Compact, heavy-duty, and waterproof
- Battery % displayed on start-up
- HELP feature, displays tutorial messages on LCD

| Model | HI99131 |
| pH Range | -2.00 to 16.00 pH; -2.0 to 16.0 pH |
| pH Resolution | 0.01 pH; 0.1 pH |
| pH Accuracy | ±0.02 pH; ±0.1 pH; |
| pH Calibration | automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) |
| pH Temperature Compensation | Automatic ‐5.0 to 105.0 °C/23.0 to 221.0 °F |
| pH CAL Check (electrode diagnostics) | Probe condition indicator |
| mV Range | ±825 mV (pH‐mV) |
| mV Resolution | 1 mV (pH‐mV) |
| mV Accuracy | ±1 mV (pH‐mV) |
| Temperature Range | -5.0 to 105.0°C / 23.0 to 221.0°F |
| Temperature Resolution | 0.1°C / 0.1°F |
| Temperature Accuracy | ±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside) |
| pH Electrode | HI629113 titanium body, pre-amplified pH probe with internal temperature sensor, quick connect DIN connector and 1 m (3.3’) cable (included) |
| Automatic Shut-Off | user selectable: after 8 min, 60 min or disabled |
| Battery Type/Life | 1.5V (3) AAA / approximately 1400 hours of continuous use |
| IP Protection | IP67 |
| Environment | 0 to 50°C (32 to 122°F); RH max 100% |
| Dimensions | 152 x 58 x 30 mm (6.0 x 2.3 x 1.2”) |
| Weight | 205 g (7.2 oz.) |













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