Dissolved Oxygen/Temperature Sampler
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Collects samples at specific depths. Ideal for the collection of dissolved oxygen samples. When trip line is pulled, dissolved oxygen sample bottle will fill, overflow and flush more than three times to insure a representative sample. During retrieval, decreasing water pressure prevents exchange of air and water with sample. Excess water in sample chamber can be used for additional tests such as pH. Interior chamber accommodates our armored thermometer (not included) for accurate sample temperature readings. Accommodates the same sample bottle used in our popular DO kits. Use with braided line and weight.

Water Sampler
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A one-liter sampler of clear acrylic furnished with a 20 meter calibrated line and a lead collar which assures rapid descent and minimal drift. A brass messenger triggers a release mechanism to seal the sample chamber with two fitted rubber plungers at the desired sampling depth. The built-in side outlet and flexible tube allows for removal of the water sample.

Salinity Refractometer
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Hand-held salinity refractometer with easy-to-read specific gravity (SG) and salinity (0/00) scales. Designed specifically for rapid, accurate salinity determinations, requiring only a drop of sample. Fully automatic temperature compensation over the range of 10° to 30°C. Includes padded carrying pouch.

Kelway SST Salinity Tester
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Control fertilizer input & increase soil productivity

Compact - 5 x 3 x 2 Inches

Has built in cell and reads in PPM for Hydroponic Nutrient Solutions or in Millimhos for soil solutions.

• Measures soluble salts content in under 5 minutes.
  
• Gives a direct reading which defines soil condition.
  
• Includes easy to follow, complete instructions, plus a guide on procedures for soil improvement if you have high or low salinity.
  
• Tells how to avoid problems by controlling salinity
  
• Tells you when to leach
  
• Portable - Sturdy - Accurate - Battery Powered
  
• Test Hydroponic Nutrient Solutions or water

Sample Book
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his pocket size sample book contain 50 pages of “Rite in the Rain” paper, perforated to form a two part tag for sample identification. Each tag is numbered, and contains printed areas for providing appropriate sample information.