A comprehensive range of compact systems incorporating Headmaster's high-efficiency gas / liquid contactors with battery-powered measurement and display technology for simple operation and installation. Fast, accurate liquid-phase verification & calibration of all dissolved-gas Analysers.

• Accuracy: 1% of reading
• Suitable for continuous or intermittent operation
• 10 liter/hour liquid sample output
• Large, clear back-lit display with IP67 bezel
• Dimensions (cm): 35 x 14 x 30 h.w.d
• PP3 (9V) battery: life typically 2 months (low-battery indication)
• Connections: self-sealing CPC connectors
• Service Panel, incorporates all pressure regulation plus water filtration.
• Full WARRANTY support for up to six years

Gem1 - one dissolved gas display, with a choice of either O₂, CO₂ or N₂.
       See Specifications for gas concentrations available. Standard and Filler options

Gem 2 - Two dissolved gas display. Choose from O₂ plus CO₂ or N₂, CO₂
       plus N₂ or two levels of O₂. See Specifications for gas concentrations
       available. Standard and Filler options

Gem3 - Three dissolved gas display. Choose from two levels of O₂ plus CO₂ or
       N₂ for two-point verification and calibration.See Specifications for gas
       concentrations available. Standard and Filler options

Refillable bottles enable checking of package analysers.
       Compatible with GEM Filler systems