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Dry-Contact Difference between Geist smoke detectors

Discussion in 'Environment Monitors' started by NASuser2020, Jul 28, 2020.

  1. NASuser2020

    NASuser2020 New member

    I'm looking to connect a smoke detector to Watchdog 100, and I'm noticing Vertiv offers two Geist smoke detector models:
    What are the differences between the two models?
  2. Luiz S

    Luiz S New member


    Thank you for your interest on our product line.

    The main difference between SA9123F and SD2 is that SA9123F is able to be used individually on tandem with other SA9123F. It also runs on a back up 9VDC battery.
    Last edited by a moderator: Jul 29, 2020

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