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697-A All Purpose Soil Tester
Important Features:
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Permanent color standards, guaranteed never to fade, results always accurate.
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All reagents stable for minimum one year. Tester ready for immediate use.
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Accurate results - uses proven scientific methods and latest findings in plant nutrition and soil science.
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Portable, rugged, water resistant carrying case, measuring 24W x 10D x 8H inches, weighs 16 lbs.
- Phosphorus
- Potassium
- Soil Reaction (pH)
- Calcium
- Magnesium
- Chlorides
- Nitrates
- Ammonia
- Active Aluminum
- Sulfates
- Nitrite Nitrogen
- Manganese
- Plant Tissue Tests
- Ferric Iron
- Humus (Organic Matter)
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Model 694
Hellige-Truog
Soil pH Tester
The most accurate inexpensive outfit for testing pH of any soil, sand, clay or peat. Does 200 tests.
- Triplex indicator solution produces distinct shades of color over all ranges of the pH scale.
- Eliminates errors by use of an inert white powder to draw the reagent from soil to its surface for comparison.
- Accurate color comparisons with laminated color chart supplied.
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