Infrared Transmitters

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Searchline Excel Open Path Infrared Gas Detector

World-renowned infrared open path flammable gas detector offering unrivalled performance and sensitivity.
Features & Benefits
  • Fast speed of response provides earliest warning
  • High sensitivity allows low alarm set points
  • Works in inert atmospheres
Quick Specs
  • Response speed: T90 less than 3 seconds (under normal operating conditions)
  • Range: 0 to 5 LEL m.
  • Operating temperature: -40° to +65°C (-40° to 150°F)
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Product Overview

The Searchline Excel is the World’s best selling infrared open path gas detector with over 6,000 units installed in challenging applications throughout industry. From the Arctic Circle to Middle Eastern Deserts, customers have repeatedly selected the Searchline Excel as their preferred choice.

The fundamental design of Searchline Excel has remained the same since its original launch and it continues to lead the field.  

Searchline Excel is totally immune to interference from sunlight or any other sources of radiation such as flare stacks, arc welding or lightning.

The patented optical design used in Searchline Excel has proven itself as the only solution available that fully addresses all the challenges of open path gas detection. Unlike some competitive devices, it does not try to hide fundamental design inadequacy with the use of software masks that can compromise the unit’s ability to detect gas. 

Searchline Excel employs a patented double band pass filter that fully compensates for all types of fog and / or rain, thereby allowing it to continue to operate accurately and reliably in all climatic conditions.

Additional Features and Benefits:

Why open path gas detection?
Open path detectors complement the use of individual point detectors and offer many significant benefits including:

•  Wider area coverage - most likely to pick up any leak
•  Very high speed of response
•  NO unrevealed failure modes - no possibility of blocked gas path to detector
•  Detector location not as critical
•  Indicates size of hazard

Sample and reference detector alignment

•  Reduced sensitivity to alignment
•  Guaranteed performance
•  Reduced sensitivity to partial obscuration

Improved hand-held software

•  Simple confirmation of alignment
•  Visual indication of target and current signal levels
•  Compatible with existing systems

Improved telescope

•  High Power Rifle Telescope
•  Easier to align with greater zoom and magnification
•  Robust shock resistant design

Features & benefits

•  Fast speed of response provides earliest warning
•  High sensitivity allows low alarm set points
•  Alignment free design makes installation simple
•  Duct flex and vibration tolerance keeps  the system online
•  Integral functional gas test facility allows for simple system check
•  Contamination resistant optics reduce the need for unscheduled maintenance
•  Not affected by interference from water vapor
•  Immune to catalytic poisons
•  Works in inert atmospheres

Searchline Excel overview

Accessories

From power options to carrying cases, you’ll find a wide variety of helpful accessories.
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Searchline Excel Cross-Duct Test Filters Kit and Manual

2104N3000
Searchline Excel Cross-Duct Test Filters Kit and Manual
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Searchline Excel SHC Protection Device Module and Lead

04230-A-1025
Searchline Excel SHC Protection Device Module and Lead
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Searchline Excel Short Range Alignment and Conformity Kit for ATEX Approved Systems

02104-N-4006

Searchline Excel Short Range Alignment and Conformity Kit including hand-held interrogator, telescope, carry case and test filters for ATEX approved systems

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Searchline Excel Short Range Alignment and Conformity Kit for CSA Approved Systems

02104-N-6006

Searchline Excel Short Range Alignment and Conformity Kit including hand-held interrogator, telescope, carry case and test filters for CSA approved systems

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Searchline Excel Short Range Alignment and Conformity Kit for UL Approved Systems

02104-N-5006

Searchline Excel Short Range Alignment and Conformity Kit, including hand-held interrogator, telescope, carry case and test filters for UL approved systems

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Searchline Excel Sun-Heat Shade (Deluge Cover)

2104D0295
Searchline Excel Sun-Heat Shade (Deluge Cover)
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Searchline Excel Test filters Kit and Manual

2104N2999
Searchline Excel Test filters Kit and Manual
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Hand-held Interrogator UL Certified

2104B2351

Hand-held Interrogator UL Certified (4V0 software) for Optima, Searchpoint Optima Plus and Searchline Excel

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Hand-held Interrogator CSA Certified

2104B2354

Hand-held Interrogator CSA Certified (4V1 software) for Optima, Searchpoint Optima Plus and Searchline Excel

FAQ's

Gas detection technology can be complicated, and we always get questions about our products and services.

Here is a list of some of the more common questions.
We do not sell our products directly on our website but we would be happy to assist you with your gas detection needs.  On each product page you will see a red button on the right-hand side titled “HOW TO BUY”.  If you click on this button a form will appear which will go directly to one of our sales representatives once completed and submitted.  

You can also call one of our sales representatives directly.  Click here to go to the Contact Us page.  

There are two areas where you can access technical documents.  First, you can visit our Technical Library in the Support section of the website.  Here you will be able to access our entire catalog of documents and videos for all products – current and legacy products.  

You can also access the technical documents for each product on that product’s respective page within the website.    


Yes we do.  Check out our HA University training section to see what programs are available and sign up for any that you are interested in.  These courses are very informative and led by our expert engineers.  If you have any questions about training opportunities for yourself or your staff and would like to talk to a Honeywell representative, click here.

Check out the Product Inquiry page in the Contact Us section.  Here you’ll find sales contacts for each of our product lines and they can help you with any questions you may have from technical specifications to ordering information. 

Check out the Service & Repairs page in the Contact Us section.  Here you’ll find the contact information for our service centers in your region. 

There are several ways you can search for products on our website:

  • Click on the Products link in the main navigation to search by product lines.
  • Find products for a specific Industry or Application by clicking on the links in the main navigation bar at the top of the page.
  • Use our Gas Finder if you’re looking for a product that can detect a specific type of gas.
  • If you still can’t find the product you’re looking for, type the name of the product in the search bar at the top of the page.

Because we do not sell our products directly we cannot quote a specific price on our website.  Contact a sales representative through either the “HOW TO BUY” button on the product page or by calling them and they will be able to obtain pricing from local distributors in your area. 

Similar Products

Here are additional products that may be of interest to you.
Searchline Excel thumbnail
Searchpoint Optima Plus Point Infrared Gas Detector
Infrared point hydrocarbon gas detector certified for use in potentially explosive atmospheres
Applications: Military National SecurityConfined SpacesCombustible DetectionTurnarounds and Plant Shutdowns

Additional Documents

Document
Searchline Excel Engineering Specifications English US
Searchline Excel Engineering Specifications English US
Language: English US
Document
Searchline Excel Cross Duct Installation Guide English US
Searchline Excel Cross Duct Installation Guide English US
Language: English US
Document
Searchline Excel Open Path and Cross Duct Technical Handbook English US
Searchline Excel Open Path and Cross Duct Technical Handbook English US
Language: English US
Document
Searchline Excel Reflector Panel Heater Installation Guide English US
Searchline Excel Reflector Panel Heater Installation Guide English US
Language: English US
Document
Searchline Excel Performs Through Water Curtain English US
Searchline Excel Performs Through Water Curtain English US
Language: English US
Certifications
Searchline Excel Reflector Panel Heater EC Declaration of Conformity
Language: English US
Certifications
Searchline Excel Cross Duct EC Declaration of Conformity
Language: English US
Certifications
Searchline Excel Long Range EC Declaration of Conformity
Language: English US
Certifications
Searchline Excel Medium Range EC Declaration of Conformity
Language: English US
Certifications
Searchline Excel Short Range EC Declaration of Conformity
Language: English US
Document
Searchline Excel Plastic Functional Test Filters User Manual
Language: English US
Document
Searchline Excel Cross Duct Plastic Functional Test Filters User Manual
Language: English US
Document
Searchline Excel Cross Duct Installation User Manual
Language: English US