Specification of HI99121 Direct Soil
HI99121 Models and Compatible Accessories
Old HI99121 (Left)
- Uses the HI1292D pH probe with DIN Connector
- Compatible with the HI710023 Shockproof Boot
New HI99121 (Right)
- Uses the HI12923 pH probe with Quick DIN Connector
- Compatible with the HI710028 Shockproof Boot
*The new Quick DIN probe connection is compatible with the old body design, however, the old DIN probe connections are not compatible with the new body design.
Specifications
| pH Range | -2.00 to 16.00 pH |
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| pH Resolution | 0.01 pH |
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| pH Accuracy (@25ºC/77ºF) | ±0.02 pH |
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| 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) |
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| pH-mV Range | ±825 mV (pH-mV) |
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| pH-mV Resolution | 1 mV |
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| pH-mV Accuracy | ±1 mV |
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| Temperature Range | -5.0 to 105.0°C / 23.0 to 221.0°F |
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| Temperature Resolution | 0.1°C / 0.1°F |
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| Temperature Accuracy (@25ºC/77ºF) | ±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside) |
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| Temperature Compensation | automatic from -5.0 to 105.0ºC (23 to 221ºF) |
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| Electrode/Probe | HI12923 glass body, pre‑amplified pH electrode for soil measurement with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included) |
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| Battery Type / Life | 1.5V AAA (3 pcs.) approx. 1400 hours of continuous use |
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| Environment | 0 to 50°C (32 to 122°F); RH max 100% |
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| Dimensions | 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”) |
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| Weight | 196 g (6.91 oz.) |
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| Ordering Information | Each meter is supplied complete with: • HI12923 pH/temperature probe • pH 4.01 & 7.01 Buffer sachet • HI700663 electrode cleaning solution for soil deposits (1 sachet) • HI700664 electrode cleaning solution for humus deposits (1 sachet) • HI7051M soil preparation solution • HI721319 ground auger • 100 mL beaker (1 pc.) • Alkaline batteries: 1.5V AAA (3 pcs.) • Rugged carrying case • Calibration certificate of meter • Calibration certificate of probe • Instruction manual |
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| Warranty | 2 years (probe 6 months) |
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