MultiTest - Marine Basic Test Kit

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This kit combines some of the most critical marine tests to include pH & Alkalinity, Ammonia, and Nitrite & Nitrate kits into one kit. All MultiTest test kits come with an easy-to-read color chart and feature a 5 cm viewing window to help isolate color and match as closely as possible to the test sample.



  • Combines the Marine pH & Alkalinity, Ammonia, and Nitrite & Nitrate kits
  • Multi-cavity plate for simultaneous testing of up to 6 tests at the same time
  • Includes reference for test validation


MultiTest Marine Basic performs over 75 tests and contains reference samples for validation. With the multi-cavity test plate, multiple tests can be run at the same time.


Marine pH & Alkalinity

The Marine pH & Alkalinity test features a unique dye that has a pronounced color change between 8.0 and 8.3, making it the easiest kit on the market to read in that critical range. It is suitable for marine or brackish water only. Alkalinity may be read from the same sample in 0.5 meq/L increments.



The ammonia test measures total (NH3 and NH4+) and free ammonia (NH3 only) down to less than 0.05 mg/L and is virtually interference free in marine and fresh water. Free ammonia is the toxic form of ammonia and thus it is much more important to keep an eye on the level of free ammonia in your system. This test may be used with freshwater or marine water.



The Nitrite/Nitrate test measures nitrite to less than 0.1 mg/L and nitrate to less than 0.2 mg/L in marine or freshwater. The values reported are expressed as nitrite and nitrate rather than nitrogen (to convert to nitrogen, simply divide by 3.3 and 4.4, respectively).


Test Range

  • pH: 7.80–8.70
  • Alkalinity: 0–∞
  • Ammonia: 0–6 mg/L
  • Nitrite: 0-25 mg/L
  • Nitrate: 0–50 mg/L



  • pH: 0.01 pH units
  • Alkalinity: 0.5 meq/L
  • Ammonia: 0.01–0.1 mg/L
  • Nitrite/Nitrate: 0.1–1 mg/L


What’s Included?


pH Test

  • Marine pH Reagent
  • Alkalinity Reagent
  • pH Reference
  • Alkalinity Reference
  • Alkalinity Pipette
  • Sample Pipette
  • Stir Rod
  • pH Color Chart

Ammonia Test

  • Total Ammonia Reagent 1
  • Sensor Container (6 sensors)
  • Total Ammonia Reference
  • Forceps
  • Sample Pipette
  • Ammonia Color Chart

Nitrite/Nitrate Test

  • Nitrite Reagent 1
  • Nitrate Reagent 2
  • Nitrate Reference
  • Spoon
  • Sample Pipette
  • Nitrite/Nitrate Color Chart
  • Multi-Cavity Test Plates (3)
  • Marine pH & Alkalinity Instructions
  • Ammonia Instructions
  • Nitrite/Nitrate Instructions
More Information
UPC 000116099004
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