Spectrex Optical Flame and Gas Detectors

Spectrex has been a provider of optical flame and combustible gas detection solutions for the onshore, offshore, oil and gas, chemical and petrochemical industries for more than 30 years. The company’s services include protection of storage tanks for hydrocarbon fuels and gases, filling operations, aircraft hangars and many other areas where hydrocarbons are used or transported.

Optical flame detection

The SharpEye series of flame detectors are highly specified and can function to the highest standard even in extreme conditions. This series includes the tripe IR (IR3) multispectrum detector that can detect small fires up to 65m (215ft) away.

The SharpEye 40/40I flame detector has an impressive 65m (215ft) detection distance for hydrocarbon fires, and uses the IR3 technique to provide highest immunity to false alarms.

The detectors have a heated lens for continued availability in difficult environments, and a compact and lightweight design, resulting in low power consumption. They also have the reassurance of many third party approvals:

  • Performance – FM 3260 and EN54-10
  • Reliability – IEC 61508 – SIL2 (TUV) certification
  • Hazardous Area Ex – ATEX, IECEx, FM/FMC, GOST R and GOST K for Zone 1 / 21

As a result, the warranty period is extended to a full five years.

The detectors self-test for continuous optimal operation, with interface options including 0-20mA (stepped), HART, dry relay contacts and RS-485 ModBus. They can operate in temperatures between -55ºC to +75ºC, with an option up to +85ºC.

Detection of gas flames, including hydrogen

Spectrex gas flame detectors can detect methane, LNG, LPG etc. gas flames at distances of up to 30m (100ft). The 40/40M multi IR detector can detect hydrogen flames at 30m (100ft) and hydrocarbon fires at 65ft (215ft) at the same time.

Flame detection for Zone 0 areas

The SharpEye 20/20MI IR3 detector is designed for hazardous areas, for example floating roof storage tanks. Combined with zener barriers in the safe area, this compact detector offers all the benefits of IR3 technology in a small package, with a detection range of up to 40m (132ft), with stepped mA and RS485 output options.

Optical open-path combustible gas detection

The SafEye Quasar 900 open-path combustible gas detector series is made up of four models with detection distances from 4m (13ft) to 200m (660ft), and is ideal for perimeter and pipeline monitoring and plant protection. Open-path detectors can replace a number of ‘point’ type gas detectors and provide better coverage.

A heated lens is incorporated for continued availability in difficult environments, with an operating temperature range of -55°C to +65°C (-67°F to +149°F).

Output options include 0-20mA, HART and RS485 Modbus. The standard measuring range is 0-5 LEL.m for C1 to C8 hydrocarbons.

Third party approvals for the Quasar 900 include:

  • Performance – FM 6235 and EN60079-29-4
  • Reliability – IEC 61508 – SIL2 (TUV)
  • Hazardous Area EX – ATEX, IECEx, FM/FMC, GOST R and GOST K for Zone 1/21

Air / turbine intake ducts

The SafEye 300 duct-mounted open-path detector is a perfect solution for rapid combustible gas detection in air and turbine intake ducts between 0.6m and 15m (2ft-50ft), as it has a high-speed response of two seconds.

Ranges include 0-2.5 LEL.m or 0-1 LEL.m. The detector is Ex approved, meets SIL2 requirements and includes HART capability.

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Press Release

Rio Olympics Protected by Spectrex

The SAFE automatic fire detection and suppression system by Spectrex has recently been installed in Plasan's successful Guarder armored vehicle, helping to secure the 2016 Rio Olympics.

White Papers

SharpEye 40/40 Detectors Protect Ghazlan Power Plant

Spectrex Has Recently Supplied the Ghazlan Power Plant with SharpEye Optical Flame Detectors.

Spectrex Inc.

218 Little Falls Road

Cedar Grove

07009 New Jersey

United States of America

+1 973 239 8398 www.spectrex.net

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Press Release

21 August 2016

The SAFE automatic fire detection and suppression system by Spectrex has recently been installed in Plasan's successful Guarder armored vehicle, helping to secure the 2016 Rio Olympics.

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6 July 2016

The Indian Space Agency has chosen to select Spectrex SharpEye flame detectors to provide flame detection within their facilities.

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27 June 2016

The Gelredome Soccer Stadium in the Netherlands has recently installed Spectrex flame detectors to offer protection at any of their events, ranging from soccer games to cultural events and concerts.

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16 March 2016

The world's largest oil refinery is expanding its capacity up to 1.2 million barrels per day, and through this, the amount of flame and gas detectors for the whole facility's protection is required to increase.

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2 March 2016

A Mexican-based Korean car manufacturer has recently installed Spectrex's latest commercial IR3 20/20MPI Flame Detector.

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25 November 2015

Riga Power Plant selected both the 20/20MI and 40/40I SharpEye Optical Flame Detectors to provide fire protection.

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10 November 2015

High-value, high-risk industries often have large facilities, often located in remote areas where conditions can reach extremes, from African deserts to Alaskan waters.

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27 October 2015

A Bulgaria facility has selected Spectrex SharpEye 20/20MPI indoor optical flame detectors for its fire detection measures.

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5 October 2015

Many oil and gas installations, especially oil rigs and floating production storage and offloading (FPSO) vessels, are located in areas with harsh weather conditions, such as in the North Sea or Alaska.

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7 August 2015

Spectrex has recently supplied the Ghazlan Power Plant with SharpEye Optical Flame Detectors.

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14 July 2015

Toxic gasses have a wide range of uses a number of sectors, however they can be very dangerous at high concentrations. In particular, ammonia is an excellent coolant used in food production and storage, and an efficient fertiliser in the agriculture industry.

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27 May 2015

The Ichthys Project aims to develop a gas and condensate field roughly 130 miles (200km) off the north-west coast of Australia.

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13 May 2015

SharpEye 40/40I flame detectors were recently installed in a hot oil module in Prudhoe Bay, Alaska.

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28 April 2015

The SafEye Duct Mounted open path gas detector has recently been employed to provide gas detection at a global pharmaceutical plant.

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13 April 2015

Spetrex has released details about it's new SharpEye Mini Detectors.

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25 March 2015

The SharpEye 40/40M Multi IR Flame Detector is unique in being able to detect both hydrogen and hydrocarbon flames simultaneously.

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26 February 2015

SharpEye 20/20MI flame detectors have recently been installed to protect dome type naphtha storage tanks.

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22 January 2015

Wintershall has chosen 40/40I IR3 flame detectors to be used on a newly constructed oil rig.

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9 December 2014

Spectrex can reveal that it's products have been issued with the new hazardous area ex approval, CU TR.

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24 November 2014

The Kashagan Field, in the Kasakhstan's zone of the Caspian Sea, has invested in over 2,000 SharpEye Triple IR flame detectors.

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11 November 2014

SharpEye 40/40I IR3 optical flame detectors have recently been selected to protect the Dong Energy Hejre Crude Stabilization Project in Denmark.

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21 October 2014

Spectrex has released the newest additions to the SafEye Open Path Gas Detector range.

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7 October 2014

ELECMETAL, a leading metal parts manufacturer, has just installed 60 SharpEye model 40/40L UV/IR optical flame detectors to protect its two new production facilities where high end alloy metals are produced for the aerospace and mining industries.

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10 September 2014

The NESTE Oil bio-ethanol plant, constructed in the port of Rotterdam, is equipped with SharpEye 40/40I and SharpEye 40/40M optical flame detectors.

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4 September 2014

Spectrex's SafEye 700 series open path gas detectors have been selected by BP to protect their hydrocarbon storage GDH facility at Fronting, near Montpelier in France.

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25 July 2014

The new SafEye Quasar 900 Series, with a range of models offering detection path lengths up to 200m, has been fully certified for use in Ex Zone 1 areas to ATEX, IECEx, FM and FMC standards.

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3 July 2014

The new Open Path Gas Detection - the Quasar 900 Series has recently received SIL2 approval from TUV, proving the leading detector's reliability.

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Regional Offices

Spectrex Inc.

218 Little Falls Road

Cedar Grove

07009 New Jersey

United States of America

+1 973 239 8398 www.spectrex.net

16203 Park Row, Suite 150


77084 Texas

United States of America

India, Africa & Middle East Sales; Jay Cooley US Sales; Nick Pinto Mexico & South America Sales; Mike Candalario +1 832 321 5229


6 Applecross Road

Glasgow G66 3TJ

United Kingdom

Regional Sales Manager; Ian Buchanan +44 141 578 0693


59 Fen Ji Hu, Danshui

Taipei County 25163


Regional Sales Manager; Deryk Walker +886 2 8626 2893 +886 926 664 232

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