Pulse Pro Smart Environmental Monitor inline fan like yellowing or dead spots

like yellowing or dead spots around leaf margins

Effective in most growing media and in water/solution

stem borers

This is measured at the plug and NOT at the internal power supply like some manufactures claim

Pulse Pro Smart Environmental Monitor inline fan like yellowing or dead spotsMake Your Next Crop Your Best. Pulse Pro, the ultimate grow room monitor, lets you track and optimize every essential environmental condition in your grow, and will send you instant alerts if something goes wrong. Pulse Pro is the big brother of the Pulse One, including all of the same features plus these additional sensors & hardware: Features CO2 data: Dual channel NDIR, (50ppm + 3%MV) PPFD PAR: Measures the total number of photons within the PAR