XK300 Contactless Inmate Vital Sign Monitoring

Continuous overdose detection and in-custody death prevention for county jails.

No inmate cooperation required.

Why Facilities Choose the XK 300

Catches what rounds miss. Monitors vital signs 24/7 between wellness checks — the window where most in-custody deaths occur.

No inmate cooperation. Nothing to wear, remove, or tamper with. Works through clothing and blankets automatically.

Immediate alerts. Staff are notified the moment vitals fall outside safe thresholds — not at the next scheduled check.

Documented saves. 160+ facilities. 28 states. Lives saved at Cass County, Walker County, Kenton County, and more.

One call, no subcontractors. Our own engineers install it. Our own team supports it. 24/7.

Closing the Gap

Someone in your facility right now could be in crisis. Not flagged. Not on elevated watch. Medically cleared. Back in their cell.

That's what happened at Cass County Jail in Fargo, North Dakota. An inmate was evaluated and placed in intake. Within minutes, the XK300 issued an alert: abnormal respirations. Staff responded. The inmate was in agonal breathing. He survived.

"Without the benefit of the XK300 sensor," said Captain Andrew Frobig, Cass County jail administrator, "the next scheduled check about 10 minutes later very likely would have been too late."

Ten minutes. That's the gap between your current monitoring and a life saved.

How It Works

The XK300 mounts to the wall or ceiling of a jail cell and reads micro- and nanovibrational patterns in the room — including those produced by the human body — to continuously monitor vital signs.

  • Heart rate — Radar reads chest wall movement through clothing and bedding

  • Respiratory rate — Detects breathing vibrations even when the inmate is still or covered

  • Motion & presence — Automatically switches from motion detection to vital sign monitoring when stillness is detected

  • Threshold alerts — Staff notified instantly when readings fall outside set parameters

6,000–10,000 readings per day. Automated. No staff action required.

130° Field of View | 33 ft. Max Range | FDA 510(k) Cleared | 40x Safer Than WiFi | 30 Patents

Frequently Asked Questions

Built for the Correctional Environment

  • No inmate compliance needed — nothing to remove, tamper with, or damage

  • Detects through clothing and bedding — works regardless of how the inmate is positioned

  • Tamper-proof housing — engineered for secure detention environments

  • Autonomous scanning — automatically transitions from motion to vital sign monitoring

  • Hospital-grade accuracy — FDA 510(k) cleared

  • 40x safer than standard WiFi — no radiation risk

  • Cat 6 wired installation — consistent signal through concrete and steel

160+ Facilities. 28 States. Lives Saved.