Gilson Aqua-Check Moisture Tester

Model: MA-26X
Price: $992.50
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The Gilson Aqua-Check Moisture Tester is made in the USA, and offers an affordable choice for rapid, accurate and reliable moisture tests on sand, aggregates, ores, coal, soils and other materials with particle size up to 20mm. Samples can be quickly tested on-site, eliminating delay and risk of moisture loss during transport. Portable units are easy to use, and meet ASTM, AASHTO and Florida DOT requirements.

A pre-weighed 20g sample is placed in the test chamber, along with a measured quantity of calcium carbide reagent. When the chamber is sealed and agitated for one to three minutes, free moisture in the test sample reacts with the reagent to produce acetylene gas. The integral pressure gauge registers 0—20% moisture by weight in 0.2% graduations. Moisture range can be doubled by halving the pre-weighed sample weight.

The MA-26X Aqua-Check has a rugged, die-cast aluminum body with a tough, wear-resistant coating and includes a 0—20 % pressure gauge, with a certificate of calibration. Models are also supplied with an electronic digital balance, two 1.25in (32mm) dia. steel pulverizing balls, reagent measuring scoop, brush and instructions in a heavy-duty, waterproof plastic case.

The high-quality pressure gauge and all accessories are compatible with both Aqua-Check and MA- 21A and MA-25 Speedy-brand Moisture Testers. MAA-45 Aqua-Check 0—20% Replacement Pressure Gauge includes a certificate of calibration.

Recalibration service for existing Aqua-Check gauges is available as MAA-53. Contact us for assistance.


  • Affordable, accurate choice for rapid moisture tests on sand, aggregates, ores, coal, soils and materials up to 20mm
  • Tests are complete in minutes; no delays waiting for results
  • No moisture loss during transport
  • ASTM, AASHTO and Florida DOT-compliant
  • Parts and accessories are Compatible with Speedy-brand Moisture Testers
  • MAA-44 Calcium Carbide Reagent in 10lb cans is purchased separately

Included Items:

  • Gilson Aqua-Check Moisture Tester
  • 0-20 x 0.2% pressure gauge
  • Certificate of calibration
  • Electronic digital balance
  • Two 1.25in (35mm) dia. steel pulverizing balls
  • Reagent measuring scoop, brush and instructions
  • Heavy-duty waterproof plastic case

Optional Accessories:

Pressure Chamber Dimensions 14x5.5in (356x140mm), LxDia
Estimated Shipping Weight, lb (kg) 15lb (7kg)

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Pressure Chamber Dimensions 14x5.5in (356x140mm), LxDia
Estimated Shipping Weight, lb (kg) 15lb (7kg)
Meets Standard(s):
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