The HI-99121 portable pH meter, together with HI-12923 pH electrode, is designed to measure pH in soil or soil slurries.
The HI-99121 is a lightweight, portable pH and temperature meter. It features a two-button operation system and is simple to use. It has a waterproof and compact casing, large dual-line display, and automatic pH calibration at one or two points.
Benefits
- Simultaneous pH and temperature measurements on a large dual-line LCD display
- Automatic pH calibration at one or two points within two memorised buffer sets (standard or NIST)
- Selectable temperature unit (℃ or deg. F)
- Electrode condition indicator
- mV or pH measurement for electrode check
- HI-12923 dedicated pH probe with integrated temperature sensor
- Probe quick connect system
- Battery life indication and low battery detection
- Keystroke confirmation tone
- Auto-off function
- Waterproof casing IP67
HI-12923 has a conical rugged tip. It has a built-in temperature probe for temperature compensated pH readings and an integrated pre-amplifier to provide measurements impervious to noise and electrical interferences.
The HI-721319 auger for ground penetration is supplied to loosen the soil prior to any measurements being taken. The use of the auger is recommended to prevent scratching to the pH glass.
For best results, it is recommended that soil tests be carried out using a prepared soil slurry using the HI-7051 soil sample preparation solution, rather than direct ‘in the field' measurements - although this is possible following the instructions and use of the included auger.
Each meter is supplied complete with:
- HI-12923 pH/temperature probe with a conical tip, DIN Connector and 1m cable
- HI-70004 pH 4.01 buffer (1 sachet)
- HI-70007 pH 7.01 buffer (1 sachet)
- HI-700663 cleaning solution for soil deposits (1 sachet)
- HI-700664 cleaning solution for humus deposits (1 sachet)
- HI-7051M soil sample preparation solution
- HI-721319 auger for ground penetration, packed separately in a carton box
- beaker (1)
- 1.5 AAA alkaline batteries
- Instrument quality certificate
- Electrode quality certificate
- Instruction manual
Specifications
| pH Range |
-2.00 to 16.00 pH |
| √¢Äö√ÉÑ√ÉâTemperature Range |
-5.0 to 105.0℃ / 23.0 to 221.0deg. F |
| pH Resolution |
0.01 pH |
| √¢Äö√ÉÑ√ÉâTemperature Resolution |
0.1℃ / 0.1deg. F |
| pH Accuracy |
±0.02 pH |
| √¢Äö√ÉÑ√ÉâTemperature Accuracy |
±0.5℃ (up to 60℃), ±1℃ (outside);
±1.0deg. F (up to 140deg. F), ±2deg. F (outside) |
| pH Calibration |
automatic, 1 or 2 points with 2 sets of memorised buffer values
(pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) |
| Temperature Compensation |
Automatic, -5 to 105℃ (23 to 221deg. F) |
| pH Electrode |
HI-12923 preamplified pH and temperature probe with a conical tip,
DIN connector and 1 m (3.3') cable (included) - The HI-12923 is limited to be used from 0 to 12 pH and from -5 to 70℃ |
| Battery Type / Life |
3 x 1.5V AAA / approx. 1400 hours of continuous use:
auto-off after 8 minutes of non-use |
| Environment |
0 to 50℃ (32 to 122deg. F); RH max 100% |
| Dimensions |
154 x 63 x 30 mm (5.9 x 3.1 x 1.4") |
| Weight |
196g |
| Case ingress protection rating |
IP67 |
