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.
Internal LCD Display of the fan current for simple installation
Set high and low fan current range
Reliable method of interlock, with no moving parts there is little to go wrong
Can monitor 2 fans with running currents between 0.1A – 18A
Can be used when pressure differential switches cannot be used e.g. wall-mounted fans