As an Amazon Associate, we earn from qualifying purchases. FMM Fluid Monitoring Module - Bulk Reef Supply Neptune Systems . 210684 Gallery Attributes Brand name, Manufacturer name, ManufacturerNeptune Systems Extra Product NameFMM Fluid Monitoring Module - Bulk Reef Supply extendedQty, qtyInStock0 keywordssaltwater aquarium supplies, reef aquarium supplies, marine fish tank, live rock, GFO, protein skimmers, two part dosing, aquarium carbon, fish food, RO/DI Systems, ecotech marine, aquaillumination, neptune systems, kessil, innovative marine moq, multiple, tierMinQty11 MPN, SKU210684 qtySourceupdateFromUrlEntry snippetThe FMM (Fluid Monitoring Module) is a multi-purpose module that, with the help of various accessories, enables your Apex to do: Flow Monitoring Leak Detection Water Level Detection Power 24VDC accessories Future sensors Return pumps Measuring the flow of your aquarium’s main return pump is an incredibly useful piece of information. The key benefit would be to have the Apex notify you the instant the flow stops for any reason — usually the result of a failed or faulty pump. Furthermore, an indication of a reduced flow rate could be used to determine that the pump or the lines are dirty or are becoming clogged with algae, debris, animals, or the growth of organisms inside your plumbing. Auxiliary pumps on reactors T tierPrice1109.99 Distributor offers SellerSKUMOQIn stockMultiplePrices bulkreefsupply.com210684111 @ $109.99