REM-4 Relay Expansion Module

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Ensure healthy livestock and maximum profits with tighter control of water quality and system parameters. The YSI IOEM and REM expansion modules increase the flexibility and capability of the YSI aquaculture platform when networked with 5200A, 5400 or 5500D instruments.

  • Overview

    REMs (Relay Expansion Module) add relays where needed to control feeders, lighting, heaters, alarming, and more.

    • 4 user-configurable output relays
    • Plug-and-play: easy to install, setup and maintain (no need to hire programmers or engineers)
    • NEMA 4X (IP-66)
    • AC and DC power (DC power can be used for battery back-up if used with AC power) 
    • 2-year warranty

    Building a system is easy. Choose the expansion module appropriate for your needs (control, communications, etc.) and network with a 5200A, 5400 and/or 5500D with AquaManager®. Configure 4 (IOEM-4) or 8 (IOEM-8) analog channels as inputs or outputs for the ability to integrate 3rd party sensors or output from other devices. Outputs can be configured to control pumps, UV systems, analog valves, or send data to SCADA/ PLC systems. 


    • Recirculating systems
    • Raceways
    • Ponds
    • Sea cages
    • Live haul
    • Aquariums
    • Research
    • Tanks

  • Specifications
    Certifications ETL, cETLus, EMC, CE, RoHS, WEEE, NEMA 4X (IP-66), Made in the USA
    Connectivity / Communications RS485 communication (digitally isolated), RS232 communication configured for firmware updates only
    Equipment used with 5200A, 5400 and 5500D Instruments
    Operating Temperature -15 to 70ºC (5 to 158ºF)
    Power 12 VDC; mobile live haul or anytime when AC power is not available 100-240 VAC; automatically switches to 12 VDC back-up with alarm if primary voltage drops


  • Video

    YSI Aquaculture Monitoring & Control Instrumentation

    Engineered specifically for aquaculture systems, the YSI 5200A continuous multiparameter monitor, 5500D continuous optical dissolved oxygen monitor and AquaManager® Software can be used to integrate process control, feeding, alarming, and data management into one product or can be used to simply monitor one tank. Powerful enough to manage a full scale farming operation from anywhere in the world yet simple enough for anyone to use.

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