Portable Multi-Gas Monitor


Tetra portable monitor tracks from 1 to 4 gases with a single button that controls all functions.


A backlit "at-a-glance" display provides simultaneous viewing of all gas readings, alarm conditions, and battery life. Tetra gives rapid and effective warnings of the presence of gas when hazardous levels are detected.


Unit's shatterproof plastic housing is over-molded with rubber and incorporates a flexible internal architecture to resist shock and vibration. The unit is water and dust resistant to IP65, floats in water, and is UL, CSA, and ATEX approved for use in hazardous areas.


Two versions of the instrument are available including a rechargeable unit using lithium-ion batteries for 12 hr operation from one charge, and a version powered by three conventional AA alkaline batteries.



  • unit weighs 1 lb (500 g)
  • water and dust resistant to IP65
  • powerful 90-dBA alarm
  • operates 12 hr on rechargeable lithium-ion batteries
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