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      Top Picks
      • Siemens Flame Detector QRA4M.U
      1/1
      Siemens Flame Detector QRA4M.U
      $ 892 .50

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      With this type of flame supervision, the UV radiation emitted by gas or oil flames is used to generate the flame signal. The radiation detector is a UV-sensitive cell with 2 electrodes, which ignite when illuminated with radiation in the 190...270 nm range of the spectrum, thereby triggering a current in the flame detector circuit. The UV cell does not respond to glowing firebrick in the combustion chamber or to daylight.

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      Reviews

      • J

        JAMES HAGADORN

        Jan 18, 2026

        Siemens Flame Detector QRA4M.U
        Simple to find my way.
        Helpful
        Unhelpful
      • T

        Tom Pankow

        Oct 11, 2025

        Siemens Flame Detector QRA4M.U
        Absolutely! Thank you! I couldn’t find it at Lowe's or Home Depot.
        Helpful
        Unhelpful
      • J

        Joseph Nichols

        Mar 15, 2025

        Siemens Flame Detector QRA4M.U
        I'd like to get this order delivered as soon as possible, is next-day air an option?
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        Unhelpful
      • J

        Jeff Branneky

        Jul 20, 2023

        Siemens Flame Detector QRA4M.U
        change your survey to not require comment....ask a question if you have one
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        Unhelpful
      • A

        Anonymous user

        Nov 25, 2022

        Siemens Flame Detector QRA4M.U
        All was ok! No problems whatsoever.
        Helpful
        Unhelpful

      Siemens Flame Detector QRA4M.U

      $ 892 .50
      Click here to view shipping costs.

      ✔ In Stock (Can ship in 5-7 days)

      Quantity
      MOQ : 1
      Payment Methods
      T/T pay VISA pay mastercard pay Diners Club pay Discover pay JCB pay American Express pay Stripe pay PayPal pay Google pay Apple pay Link pay venmo pay
      • Online Support 24/7

      • 12 Months Warranty for New Products

      • 30 Days Money Back Guarantee

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