About us
Diavox Kft – the company behind Sentinel-Locate
Diavox Kft is a Hungarian software company. We do not operate buses: we build and sell Sentinel-Locate, a fleet-tracking and passenger check-in platform, to transport operators.
The system was not born on a drawing board. We built it around the needs of a live employee-shuttle operation (Ventona Trans) and proved it in production over more than four years and over one million boardings – serving major retail chains (Penny, Tesco).
The platform's guiding principle is data minimisation: boardings are recorded with an anonymous card and we store no employee names – the client matches the headcount against its own records. It needs a single piece of hardware, the driver's phone; the map is open source (MapLibre + OpenStreetMap) and the system is self-hostable.
Proven in live operation
Sentinel-Locate has run on Ventona Trans's employee shuttles for years – on real data, serving major retail chains (Penny, Tesco).
- Years in production
- 4+
- Boardings tracked
- 1 000 000+
- Daily routes live
- 60+
- PII-free by design
- 100%
The product's journey
The first live system
Diavox builds driver-phone tracking and NFC check-in for a live employee-shuttle operation.
Growing production use
The system scales to more routes and clients, including shift transport for major retail chains.
One million boardings
We pass one million recorded boardings; the name-free, PII-free data model proves itself in production.
Sentinel-Locate – the product
We turn the platform into a product: modular, multi-tenant (Next.js + Payload + PostgreSQL), available to other transport operators too.
The first live system
Diavox builds driver-phone tracking and NFC check-in for a live employee-shuttle operation.
Growing production use
The system scales to more routes and clients, including shift transport for major retail chains.
One million boardings
We pass one million recorded boardings; the name-free, PII-free data model proves itself in production.
Sentinel-Locate – the product
We turn the platform into a product: modular, multi-tenant (Next.js + Payload + PostgreSQL), available to other transport operators too.
What we stand for
Three principles that guide every decision in Sentinel-Locate.
Data minimisation
We handle only the data that is strictly necessary. We store no employee names – making GDPR compliance simpler by default.
Proven, not promised
We are not selling a prototype. The platform has run for years, on real routes, across more than a million boardings.
Low cost of entry
A single phone per bus, an open-source map, a self-hostable system – no expensive hardware and no vendor lock-in.