Organic Gardener

Sentinel PXM Power Expansion Module When you need to control larger equipment with higher amperage, or when you need to increase the number or size of the lights, fans, air conditioners or pumps in your growing area, the Sentinel PXM-1 or PXM-2 is your answer. The Sentinel PXM Power Expansion Modules are pre-wired and ready to use right out of the box. Each gives you 2 electrical...