Body-Worn Electronics for the Operational Edge
Harrow Defense builds body-worn electronic systems that close critical capability gaps for operators in contested, remote, and infrastructure-degraded environments. We develop low-SWaP hardware engineered for the operational edge — where size, weight, power, and survivability are non-negotiable, and where the cell tower, the satellite link, and the GPS fix cannot be assumed.
Our systems are designed for the people who operate beyond reliable infrastructure: dismounted military forces, law enforcement and tactical teams, wildland firefighters and search-and-rescue crews, mass-casualty and HAZMAT responders, and industrial workers in remote, underground, or RF-denied environments.
We focus on problem sets where current solutions are too large, too fragile, or too dependent on infrastructure that doesn't exist at the point of need. Each capability is designed to be useful whether the operator is a soldier, a SWAT team member, a hotshot crew boss, or an underground mine supervisor.
Real-time location and status of distributed team members in GPS-denied, comms-degraded, and indoor or underground environments — from dismounted squads to SWAT entries, fire-ground interiors, and mine workings.
Self-forming, self-healing low-power radio networks that operate without fixed infrastructure. Carries position and sensor data where cellular, LMR, and satellite are degraded, contested, or absent.
Body-worn sensing for individual health and readiness — heat-casualty prevention, real-time triage support, and lone-worker fall and exposure detection across military, public safety, and industrial users.
On-body compute for time-critical data fusion and decision support where cloud connectivity is unavailable, unacceptable, or unaffordable.
The same core technology — small, rugged, low-power body-worn electronics that work without infrastructure — serves a wide range of operators who share a common problem: they need to know where their people are, what condition they're in, and how to keep them connected when conventional networks fail.
Dismounted-soldier capability gaps in position location, sensor aggregation, and tactical-network bridging. Designed for contested electromagnetic environments and extended dismounted operations.
Tactical teams operating in stairwells, tunnels, transit systems, and RF-degraded urban interiors where commercial radios and cellular service break down.
Hand-crew, hotshot, and search-and-rescue operations across remote terrain — beyond LMR repeater coverage and cellular footprint, where crew location and physiological state matter.
Multi-agency personnel tracking and physiological monitoring during MCI scenes, structure fires, and HAZMAT incidents where multiple radio systems and accountability frameworks intersect.
Underground personnel tracking, gas-sensor aggregation, and mesh relay in RF-denied environments. Lone-worker safety on pipelines, transmission corridors, and remote sites.
Research teams, expedition crews, and professional outdoor operators working far from cellular and reliable satellite coverage.
We design hardware and firmware from the ground up for the constraints of sustained body-worn operation. Our work spans the full stack from antenna and RF through embedded software — optimized for environments where every gram, milliwatt, and millisecond matters, and where the device has to keep working when the rest of the network stops.
For inquiries about capabilities, partnerships, pilot programs, and procurement across government and commercial markets.
dan@harrowdefense.com