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ChemKey TLD Toxic Gas Detector

Portable, flexible and interference free toxic gas detector.
Features & Benefits
  • Battery operated or line powered
  • Low maintenance and no dynamic gas calibration
  • Variety of signals outputs to meet monitoring needs
Quick Specs
  • Detection technique: Chemcasstte® Direction System
  • Response Time: As fast as 10 seconds
  • Alarm indication: Audio and visual alarms
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Product Overview

The ChemKey™ TLD Toxic Gas Monitor provides a reliable solution for both emergency response and fixed area gas detection in a cost effective manner. 

Utilizing the exclusive ChemKey™ Gas Selection System, a single monitor is capable of monitoring over 50 different gases with just a change of ChemKey™ and Chemcassette®

As with all Chemcassette® based products, you are assured of fast, sensitive and substance specific exposure protection. There is never any danger of false alarms or inaccurate results caused by other commonly present chemicals.


Additional Features and Benefits:


  • Portable, flexible and interference free toxic gas detection
  • Battery operated or line powered
  • Exclusive Chemcassette® detection is gas specific, sensitivity to ppb levels with physical evidence
  • Low maintenance and no dynamic gas calibration
  • Variety of signals outputs to meet monitoring needs
  • Over 50 gases available, ChemKey™ allows switching target gases easily
  • Emergency response teams
  • R & D projects
  • Temporary facility monitoring
  • Industrial hygiene surveys
  • Spill remediation
  • Equipment maintenance crews
ChemKey TLD Toxic Gas Detector by Honeywell Analytics

Popular Accessories

From power options to carrying cases, we have a multitude of accessory items to go with your monitor.

Chemkey TLD-1 Charger


Charger, Battery TLD (90-264VAC, 47-63Hz) US, Eur and UK connectors.

Frequently Asked Questions

Have a question about the product features or warranty? Find the answers here.
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. 

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Applications: Laboratory Medical