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The GroLine HI98118 pH/temperature tester measures the pH of a hydroponic nutrient solution, essential to maximize optimum growth. The table below lists the ideal pH range for a variety of plants. The HI98118 can also measure the pH in soil slurries or soils and nutrient solutions using the Pour Through Sampling Methodfor container plants, where leachate is collected from a thoroughly watered plant for testing.
| SKU | HI98118 |
| Name | GroLine Waterproof pH Tester with 0.01 Resolution – HI98118 |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 |
| pH Accuracy | ±0.2 pH |
| pH Calibration | automatic, one or two-points (pH 4.01, 7.01, 10.01); one-point calibration using HI5036 or HI50036P Quick Cal calibration solution |
| pH Temperature Compensation | automatic, 0 to 50°C (32 to 122°F) |
| Temperature Range | 0.0 to 50.0°C/32.0 to 122.0°F |
| Temperature Resolution | 0.1°C/0.1°F |
| Temperature Accuracy | ±0.5°C/±1°F |
| Automatic Shut-Off | 8 minutes, 60 minutes, or can be disabled |
| Battery Type/Life | CR2032 Li-ion / approximately 1000 hours of continuous use |
| Environment | 0 to 50°C (32 to 122°F); RH 100% max |
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