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Estro B2 – Burner Management Box

ESA Estro is a device for two-stage burners (pilot and main gas valves). Remote control via electric and serial signals with powered output when the burner is on.

Quantity discount

Quantity 1 - 4 5 - 9 10 - 19 20+
Price £435.54 £413.76 £391.99 £370.21



Product Description

The ESA ESTRO is a microprocessor operated device, designed to control gas and oil fired burners, which are discontinuously operated. This device warrants the safe operation of the combustion unit at one or two stages (pilot/main burners). It controls the air flow rate and allows the detection of flame presence through ionization (electrodes) or UV radiation (UV-scan). ESA ESTRO is equipped for serial communication, allowing a remote burner control and operation. Additionally, the thermal resistant case of ESA ESTRO allows its installation on burner proximity, provided that the environment temperature remains below 60°C.


Product Details

  • Supply voltage: 115 or 230 V (+10 to -15%)
  • Operating temperature: 0 - 60°C
  • Storage temperature: -20 to +80°C
  • Maximum relative humidity: 75%
  • IP54 - Protection class (when wiring, use adequate connectors)
  • Probe voltage: 300 VAC
  • Prepurge time: 0 - 255 s
  • First safety time: 1 - 25 s
  • Main burner stabilization time: 1 - 25 s
  • Reaction time: 1 - 20 s
  • Post-purge time: 0 - 255 s
  • Auto shutoff (can be inhibited): within 24 hours
  • Dimensions: 200 √ó 120 √ó 93 mm
  • Flame controlling device: rod or UV-2 phototube (ESA)


Onsite Diagnostics

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  • This field is for validation purposes and should be left unchanged.


We recommend Duomo Gas Detection products are serviced at least annually to ensure efficacy and extend sensor life. Our qualified team of engineers are available Nationwide.



  • Estro Datasheet

    1.68 MB | pdf


Support & Service

If you require technical assistance or an annual service on this product please contact us and we will be happy to help. Our qualified team of engineers are available Nationwide.

Duomo (UK) Ltd

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