Fast, sensitive & easy-to-use threat detection

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Modern mailrooms need protection

Every year over 3000 pieces of suspicious mail are reported to the US Postal Service, and countless more go unreported or undetected.

Mail remains the #1 method for targeting individuals anonymously in governments and corporations. From the Unabomber to the 2001 Anthrax attacks to the recent ricin threats at the White House, high-profile leaders are consistently at risk.

Pathsensors mail screening services CRBNE threat detection anthrax ricin

Keep your team safe and avoid shutdowns with PathSensors mail screening

We at PathSensors want to keep your mailroom running. That’s why we’ve partnered with fortune 500s, financial institutions, and the Department of Defense to provide security and peace-of-mind for over a decade.

Comprehensive threat detection, low cost of ownership

PathSensors’ CANARY technology – originally developed by MIT Lincoln Labs – is a gamechanger for mailroom screening and biothreat detection. Unlike older technologies, CANARY detects pathogens faster, more accurately, and more economically. We also have longstanding partnerships with multiple mail-screening companies to provide detection for the full CBRNE suite.


Our Solutions:

A stand-alone, ambient air device for use in any mailroom.

A comprehensive mail screening system that replaces a negative pressure room for a fraction of the cost.

The Benefits of Screening Mail with PathSensors:


High Sensitivity: 100-1000 CFU


Complements x-ray, chemical, and other threat detection technologies


Low Cost


Detects high-priority threats like anthrax and ricin


Fast: 5 minutes to Result




Used by top government and commercial mail screening customers

“[PathSensors] went above and beyond with its customer service by regularly inquiring as to [our] satisfaction with its products and services…products arrived in excellent condition and performed at a consistently high level.”

- US Government Biodefense Customer

Check out our short video below to see how the MailGuard works!

Ready to learn more?

We’re here to help you keep employees safe.

Get In Touch

701 E Pratt Street
Baltimore, MD 21202

Phone: 443.557.6150


About PathSensors

At PathSensors we are committed to making the world a safer place. We are always excited to tackle new challenges, so please contact us to discuss collaborations or development projects.