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Midas® Gas Detector

Bringing new visibility, reliability and ease of use to gas detection in semiconductor processing and industrial manufacturing.
Features & Benefits
  • Detects more than 35 gases error-free
  • Improved visibility and ease of use
  • Easy installation 
Quick Specs
  • Flow Rate: 500 mL/min
  • Transport Time: 2 to 30 seconds maximum
  • Sample Line Tubing: 0.125 in ID x 0.25 in OD
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Product Overview

The Midas Gas Detector uses reliable sensor technology to detect many key toxic, ambient and flammable gases in a plant. The device monitors points up to 100 feet (30 meters) away while using patented technology to regulate flow rates and ensure error-free gas detection. Thanks to Honeywell’s use of advanced robotics, the Midas Gas Detector offers unbeatable quality and reliability:

  • Improved visibility and ease of use. The Midas Gas Detector is equipped with bright LED lights and an intuitive, interactive interface that provides instant alerts to gas readings or alarm levels. The interface also includes password-protected menus for configuration, test and calibration.
  • Easy installation. Compact in size with an easy-to-handle metal chassis, the Midas Gas Detector is simple to install. That’s especially important in crowded, complex process environments where space is at a premium.
  • Numerous applications. With feature-rich capabilities that are easy to use, the Midas Gas Detector is suitable for many industry applications, including semiconductor processing, light industrial manufacturing, university laboratories, aerospace, wastewater and more.

Additional Features and Benefits:

  • Over 35 gases available with extended 2 year warranty*
  • Smart sensor cartridge with on board ‘e-calibration’ certificate
  • 3 built in relays (Form C) for Alarm 1, 2 and Fault
  • Power over Ethernet (PoE) communication
  • Keypad interface and remote web browser interface
  • Optional Midas Pyrolyzer module that connects to any Midas Gas Detector
  • Password protected menu levels to preserve system integrity
  • Bright LEDs and intuitive icon driven, large multicolor backlit LCD display
  • Factory-calibrated sensors to reduce need for frequent gas testing
  • Isolated 0-22 mA analog output with fault and event reporting
  • Modbus/TCP Ethernet for easy connectivity to all control and alarm systems ports for control connectivity and service interaction
  • Robust extractive pump system (2 year lifetime) sampling up to 100 feet
  • CE marked for total immunity to Radio Frequency Interference
  • Reflex® sensor health check for improved safety
  • TempraSureTM temperature compensation technology as appropriate
  • Event logging to review sensor history
Gas Detector with sensor technology - Honeywell Analytics


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Midas® 8 Port POE switch (120VAC) for 3 Midas® or 2 Midas®/Pyrolyzer units


Midas® 8 Port POE switch (120VAC) for 3 Midas® or 2 Midas®/Pyrolyzer units

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Midas® Duct Adapter for 1/4" O.D. tubing for 4-16" round ducts

Midas® Duct Adapter for 1/4" O.D. tubing for 4-16" round ducts
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Midas® LonWorks Interface Module

Midas® LonWorks Interface Module
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MIDAS-T-0P3 Midas® High Temperature Pyrolyzer Module

MIDAS-T-0P3 Midas® High Temperature Pyrolyzer Module


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. 

Simply click on the arrow pointing down next to “LANGUAGE” in the red bar at the very top of the page.  A drop down list will appear and you can select any language from the list.

Our Technical Library has all the documents you’ll need for current and legacy products.  Select the “Legacy Product” filter in the left-hand column to find the documents for your product.  If you still can’t find the information you need, visit the Contact Us section of the website and a service representative will be glad to assist you. 

BW Technologies is part of the Honeywell Analytics family so in an effort to provide our customers with complete gas detection solutions we merged the gasmonitors.com and honeywellanalytics.com websites.  We hope that having all of our brands and products in one location will make it easier for you to find the right solution for your gas detection needs. 

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Download the latest firmware, drivers and software packages

Midas Security Update Package
SN 2015-10-14 01 Rev 03

We recently discovered a potential security vulnerability in our Midas Gas Detector transmitter (part number MIDAS-T-004).

Honeywell has prepared a free, downloadable security patch to correct the issue.

In addition to installing the security patch, Honeywell strongly recommends that customers with affected products take the following additional steps to protect their devices:

  • Passwords should always be used on installations of Midas to prevent unauthorized access.
  • Allow only trained and trusted persons to have physical access to their system, including devices that have connection to the system though the Ethernet port.
  • If possible, isolate your system from the Internet or create additional layers of defense by placing the affected hardware behind a firewall or into a DMZ.
  • If remote connections to the network are required, consider using a VPN or other means to ensure secure remote connections into the network the device is on.

Additional Documents

Sensor Cartridges