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The Merlin PM2+ is a dual fan current monitor and is to be used in conjunction with the Merlin 1500S, CT1750, 2000S & 3000S Systems; it can be used as an alternative to an air pressure differential switch. The system uses a unique built in current monitor which displays the exact fan current, in order to interlock with the ventilation with precision accuracy. 


  • Ventilation interlock system which isolates the fuel supply if the ventilation fails
  • Monitor up to 2 extract or supply fans

PM2+ Double Current Monitor

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