Altec AIR offers moisture indicators to provide an inexpensive way to monitor a dry compressed air system, with a visual indication of the moisture content of the outlet air stream. The Moisture indicator shows a color change (blue to pink) when moisture levels rise.

The moisture indicator should be installed after the air dryer or on the dryer outlet.

Standard Features:
  • Easy, inexpensive way to monitor a dry compressed air system
  • Installed anywhere in the system after the air dryer
Moisture Indicators:
Description Thread
(NPT)
Maximum Pressure
(PSIG)
20520 Anodized aluminum w/ blue to pink gel cap 1/8" or 1/4" 150
51364 Nickel/steel w/ blue to pink indicator & brass adapter 1/8" 1000
51356 Nickel-plated steel w/ blue to pink indicator 1/4" 2000
51358 Nickel-plated steel w/ blue to pink indicator 3/8" 1850
51362 Nickel-plated steel w/ blue to pink indicator 1/2" 1750
Moisture Indicator Kits:
Description Thread
(NPT)
Use With Dryer
51308 Anodized aluminum w/ blue to pink gel cap 7/16"-20 VSA1 - VSA4
20503 Nickel-plated steel w/ blue to pink indicator & brass tee 3/8" HR1 - HR4
30803 Nickel-plated steel w/ blue to pink indicator & brass tee 1/2" HR5 - HR7
P200405 Anodized aluminum w/ blue to pink gel cap 7/16"-20 PHCA, PMCE, FTIR, PCDA, PHF
P010103 Nickel/brass w/ blue to pink gel cap & brass tee 1/2" PCR, PCRX