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// Product · Standalone Alerting For Emergencies

When the grid goes dark, the warning stays on.

The SAFE Network™ is a self-forming mesh of Portable Alerting Units that broadcast audio and visual emergency alerts with no cellular, no Wi-Fi, and no internet required. Built for the moment infrastructure fails — and people still need to be told what to do.

AcronymStandalone Alerting For Emergencies
ConnectivityNone required · RF mesh
Standby PowerUp to 5 days
Form FactorWall-mount or portable
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HQE University training platform shown on a laptop dashboard
99.98%Uptime across sites
<2sAlert response time
24/7Continuous coverage
0
Cellular / Wi-Fi required
5d
Standby on battery
3,000+
Units deployed
2-way
Audio + visual alerts
// What It Is

A warning network that doesn't depend on the networks that fail first.

The SAFE Network™ is a mesh of Portable Alerting Units (PAUs) — compact, self-powered devices that deliver loud audio and high-visibility visual alerts the instant an emergency is declared. They talk to each other over a private radio mesh, so the message propagates even when cellular towers are saturated, power is out, and the internet is gone.

Mount them on a wall in a classroom, a barracks, a control room, or carry them to a stadium concourse. Wherever a PAU sits, it becomes a relay — every node strengthens the network and closes the dead zones legacy systems leave behind.

It's the answer to a simple, brutal question: how do you warn people when the things you'd normally warn them with are already down?

No connectivity requiredSelf-forming RF mesh — no SIM, no router, no service contract, no single point of failure.
Up to 5 days standby powerOnboard battery keeps every unit live through extended outages, then recharges off normal AC.
Audio and visual togetherSpoken/tone alerting plus bright strobe — reaching the hard-of-hearing and high-noise spaces alike.
Mount it or move itWall-mountable for fixed coverage, fully portable for events, deployments, and surge needs.
Resilient mesh communication network visualization
// Meet the Hardware

The SAFE Unit — a warning station you can carry into the fire zone.

Each Portable Alerting Unit is a rugged, self-contained warning station engineered for the harshest conditions. The wildfire-ready configuration pairs a high-output speaker array with a bright visual beacon and onboard battery — so it keeps broadcasting where smoke, heat, and downed lines knock everything else offline.

Drop one at an evacuation chokepoint, a staging area, or along a fire perimeter. It joins the mesh on power-up, relays the alert to every neighboring unit, and turns any location into a verified warning node in minutes.

High-Output AudioCuts through wind, smoke, and crowd noiseRUGGED
Weather-Hardened ShellBuilt for outdoor wildfire deploymentsFIELD-READY
Up to 5-Day BatteryStays live through extended outagesOFF-GRID
// Why It Matters

Engineered for the moment everything else goes quiet.

Most alerting assumes the infrastructure survives the emergency. The SAFE Network™ assumes it won't.

Works when infrastructure fails

Earthquakes, wildfires, cyber events, grid collapse — the SAFE Network™ keeps broadcasting independent of the systems most likely to be the first casualties.

Self-healing mesh

If one unit drops, the others reroute around it automatically. Coverage degrades gracefully instead of collapsing — there is no central node to take down.

Fast to scale

Add a unit, it joins the mesh. No trenching, no cabling, no carrier provisioning — extend coverage to a new wing, lot, or perimeter in minutes.

// SiSA Integration

One activation. Every channel, including SAFE Network™.

Operators add the SAFE Network™ as a destination right inside the SiSA™ platform, alongside sirens, desktop alerts, and IPAWS. One message, one click, sent everywhere at once.

// In the SiSA Console

Already part of your alert stack.

From the same activation screen your team already uses, the SAFE Network™ appears as a selectable destination. Operators choose it on its own or with every other channel — the message reaches the mesh and the outdoor sirens and the federal gateway in a single send.

No new tool to learn, no second login. The SAFE Network™ behaves like every other SiSA channel: pick it, send it, watch it confirm.

See SiSA in action
Giant Voice Outdoor SirensVoice + tone, wide-area coverageSELECTED
Indoor & Desktop AlertsWorkstation takeoverSELECTED
IPAWS / WEAFEMA federal gatewaySELECTED
SAFE Network™All devices alerted, no grid needed.SELECTED
// Who It's For

Built for the places that can't afford to go silent.

Cities & MunicipalitiesOff-grid public warning → Campuses & SchoolsClassroom-level coverage → Military InstallationsResilient base alerting → UtilitiesSite & substation warning → Event VenuesPortable crowd alerting → Industrial SitesHigh-noise zone alerting → Oil & Gas FieldsWide-area remote alerting → HealthcareHospital code & evac alerts →
“
The whole point is that it doesn't ask permission from anything. No power, no signal, no problem — the units just keep talking to each other and getting the alert out.
HQLead Systems EngineerHQE Systems
// Standalone Alerting For Emergencies

See the SAFE Network™ broadcast — even with the plug pulled.

Tell us your site, your dead zones, and your worst-case outage. Our veteran-led team will scope a SAFE Network™ deployment and show you exactly how it slots into your SiSA™ alert stack.

Request a Demo 1.800.967.3036