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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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        A: Yes, we provide size conversion charts for international customers on our website. These charts help you convert sizes between different measurement systems, ensuring you select the appropriate size for your region. They can usually be found in the product description or on the size guide page.

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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?
        Helpful
        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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