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What is Prysma Sentinel v2?

Sentinel is a field operations platform: live tactical map, SOS alerts, geofences, and a mobile app on top of LoRa nodes. Learn what it solves and who it is for.

Published on April 18, 2026

Operational summary

Prysma Sentinel is a field-operations platform built for mission-critical work: fleet visibility on a tactical map, contextual SOS alerts, geofences with per-zone rules, persistent per-unit chat, and unified history.

Version 2 ties the physical ecosystem (LoRa nodes and gateway) to the SaaS control plane and the Sentinel mobile app—one source of truth for admins and operators.

Deep dive

Mission-critical field operations—private security, heavy logistics, energy, mining, civil defense, rescue teams—share a common problem: they need to know where their units are at every moment, get alerts when something deviates from plan, and keep a reliable history for audit. Most teams cobble together that visibility from WhatsApp, spreadsheets, radios, and a generic GPS. It works until it doesn't: when a real SOS hits, that improvisation does not scale.

Sentinel solves that with a single control plane wired to dedicated hardware (LoRa nodes with GPS and battery) and a mobile app for field operators. The operations center sees the entire fleet on a tactical map, receives SOS and geofence events in seconds, and keeps a full audit trail. The philosophy is simple: one source of truth, synced across web, mobile, and field devices.

Unlike a traditional GPS, Sentinel is more than dots on a map. Each unit has a chat thread, operational context (last heartbeat, current geofence, active mission), and policies that define how to escalate incidents. Version 2 added assignable missions, data export for external analysis, and an operational dead man switch for lone workers.

The product is built around three roles: the organization administrator, who configures geofences, team, and plans; the field operator, who uses the mobile app to mark duty, view missions, and trigger SOS; and the operations center, which watches the map, responds to alerts, and coordinates the team. Everyone shares live data, with no manual sync steps and no extra browser tabs.

Frequently asked questions

How is Sentinel different from a traditional GPS?
A GPS marks positions; Sentinel adds operational context (rule-based geofences, SOS alerts, per-unit chat, assignable missions, audit history) on top of dedicated LoRa hardware and a mobile app for operators. It's not a tracker, it's an operations platform.
What hardware do I need?
Sentinel runs on Heltec V4-class nodes (LoRa + GPS + battery) and an edge gateway. Prysma provides firmware and initial setup; the mobile app runs on any modern Android.
What kind of operations is it for?
Mission-critical operations with field teams: private security, heavy logistics, energy, mining, civil defense, response teams. Any vertical where you need to coordinate units in real time with audit trails.
How do I get access to the product?
Sign up on the web dashboard, get an Org ID, paste it into each operator's mobile app, and pair physical nodes with the gateway. You can be operational in under a day.
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