Frequently Asked Questions

Why not just use traditional motion and occupancy sensors?

There are a few reasons:

  • No extra hardware – with RF Tomography, you can detect motion and occupancy using the wireless devices that are already in place
  • Aesthetic advantages – Aesthetic advantages – put XANDEM devices pretty much anywhere instead of in direct view like traditional sensors (PIR, ultrasonic, etc) which must be installed on walls and ceilings
  • Better coverage – RF Tomography can detect motion through walls and other obstructions, enabling more comprehensive home monitoring
Why not just use video cameras?

RF Tomography might be a better fit than a camera for a few reasons:

  • Privacy concerns – our technology doesn’t capture images or video, making it a better option in spaces where people might not be comfortable with cameras
  • Hidden devices – cameras must be mounted in plain view, while the devices used for RF Tomography can be hidden from view
  • Better coverage – RF Tomography can cover large floor plans since it can see through walls and obstructions, while a camera can only see what it’s point at in a single room

In cases where cameras are desirable, RF Tomography can be used to enhance video systems by triggering and steering cameras to the location of motion.

Can I see a live demo?

Of course you can! Get in touch with us at and we’ll schedule a time for you to see our technology in action!

Can RF Tomography co-exist with my product's wireless protocol?

Yes. Our technology can run on various frequency bands and on top of or alongside almost any protocol.

How can I add XANDEM's RF Tomography capabilities to my products?

Our engineers will work with yours to add our libraries and applications to your firmware and software stacks.

I don't have hardware. Is it still possible to use this technology?

Yes! XANDEM can help you select a hardware platform that is capable of supporting RF Tomography, or even develop a custom solution for you.

I'm interested. How do we get the ball rolling?

Great! Send an email to and let us know you’re interested. We’ll start with getting to know you and your product, with the goal of understanding how best to integrate our technology.

What is RF?

RF stands for radio frequency, which generally refers to electromagnetic waves with frequencies between 20 kHz and 300 GHz. We rely on frequencies in this range, so we call the technology RF Tomography. It’s also commonly referred to as radio tomography.

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