Douglas® Assurance™ metal detectors are available in dual probe configurations. The compact design allows installation in almost any application. The sensitivity can continuously be adjusted if only larger pieces of metal are to be detected. The control unit has self-adjusting electronics housed in a durable, metal cabinet. Power switches and output relays are gold plated providing reliable service.

The unit can be integrated into an existing plant control system without any extra components. Ideally suited for Quarries, Mining, Recycling, Slag Processing, Cement, Brick Plants, Forest Products and Recycling as well as other applications.



  • Detects both ferrous and non-ferrous metals
  • Magnetite from iron oxide and ore are ignored
  • Can be operated in close proximity to frequency converters
  • Can be operated near magnets (minimum distance of 6 feet)
  • Probe(s) constructed of high temperature PVC plastic for durability
  • Special secondary sensitivity in area of metal splice or repair clip
  • Adjustable primary sensitivity during operation
  • Accepts both 110 VAC and 220 VAC single phase power

As with all Douglas manufactured products, Douglas® Assurance™ metal detectors are designed to help our customers make their conveyor operations safer, more profitable, and ultimately, make their lives easier. While using the latest technology, we’re dedicated to engineering the most economical solutions and the fastest solution cycle times available in the industry.


Douglas Manufacturing’s Industrial Metal Detectors


As mentioned above, Douglas manufactures metal detectors that are suitable for a variety of industrial applications, including mining, recycling, slag processing, cement, quarries, brink plants, forest products, and more. We know our customers have different needs, and that’s why our metal detectors aren’t one-size-fits-all. All of our metal detectors have an adjustable secondary sensitivity so they can be programmed to fit your specific needs.

Our metal detectors were designed to benefit the end user, and that’s why we made them easy to install in just about any application. While coming unassembled for quick installation, they can easily be integrated into any existing plant control system.

Since our metal detectors can detect and ignore certain metals and materials, you don’t have to worry about false belt stoppage which can lead to costly downtime. These can also be operated near converters and magnetics which ensure that if a piece of ferrous metal does get past, the metal detector will catch it, providing the reassurance you need in your daily operations.

With Douglas metal detectors, you’ll be better equipped to maintain a high-quality product, experience increased productivity and less downtime, and know you’re doing all you can do to protect your high-dollar equipment.


Choose Douglas® Assurance™ Metal Detectors for Your Conveyor Needs

With Douglas® Assurance™ Metal Detectors, you’re getting more than a solution you can count on each and every day. You’re also getting a team of experts who are here when you need them. Whether that’s answering questions prior to purchasing our products or troubleshooting years down the road, our knowledgeable team is here to serve you and make sure you’re getting the absolute most out of our conveyor solutions.

For your convenience, all of our stock items are ready for same-day shipment, plus we offer emergency and after-hours services resulting in lead times of as little as 24 hours for critical situations. We never stop being there for you.

We’re proud to say that all Douglas conveyor components are assembled in the United States, and you can rest assured that the team at Douglas is deeply committed to Conveying Innovation™ each and every day.

To see our full product line and the range of conveying solutions we manufacture, visit our homepage now. For over 40 years, we’ve been a leading innovator in the conveyor industry, and we’d love to help you select the products that are right for your needs.

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