Pro H2O Alarm Moisture Analyzer with Lithium Battery

The Pro H2O Moisture analyzer measures moisture (H2O) levels in gases in the range of 0 to 1999 parts per million (ppm). It can be used to measure the moisture content in gas mixes that will increase with humidity and moisture saturation of filters. The Analyzer is designed to verify H2O concentration in stored gas cylinders as well as to monitor continuous gas flow from a compressor. Inquire with your sales representative for sensor replacement information.



  • Audible and visual alarms for high moisture content
  • Universal power options
  • Working pressures of 100-6000 psi
  • No limit on flow rates
  • Programmable alarm thresholds
  • Fast response
  • Easy to operate, reliable and accurate


  • Optional relays for external alarm or compressor shutdown before filter elements saturate


Range 0-500 ppm
Display Accuracy 5 ppm + 9% from measured value
Sensor Type Capacitive
Expected Sensor Life 3 years
Power (Voltage / Frequency) Lithium battery
Response Time <5 min -4° to -76°F (-20° to -60°C)
<15 sec -76° to -4°F (-60° to -20°C)
Operating Temperature / Humidity -40° to 158°F (-40° to 70°C) 0 to 100% RH
Storage Temperature -40° to 140°F (-40° to 60°C)
Pressure 0 to 80 bar
Warranty 12 months
Dimensions (L x W x H) 8.7 x 3.9 x 7.5 in (22.1 x 9.9 x 19.1 cm)
Weight 2.6 lbs (1.2 kg) box only