Proof-of-concept sprint
A working connected measurement device, with source code, a dashboard and a measured battery-life estimate.
from €[6,000]
Details →
Low-power cellular IoT · Budapest
We build connected measurement devices, from circuit board to dashboard.
Low-power cellular IoT and energy monitoring, engineered end to end by a small team in Budapest.
Book a 20-minute call
See our offers
Five layers. One team.
Sensor + PCB
Voltage, current and power, measured safely near mains.
Firmware
Sleep budgets, power-saving modes and OTA updates.
NB-IoT / LTE-M
PSM and eDRX tuned for the operator and the site.
Cloud
Ingest, storage, alerts and a simple dashboard.
Analytics
We find faults in your device data.
For teams that measure things in the field
You need remote monitoring and have no electronics or firmware team of your own.
- Solar and battery installers
- EV-charger and heat-pump companies
- Energy management startups
- Building operators
- Cellular devices with battery or connection trouble
Fixed price. Scoped in one call.
Battery and connectivity fixes
Power traces, modem logs and a ranked fix plan for NB-IoT and LTE-M devices that drain or drop off.
from €[3,000]
Details →
Device data analytics
Fault and anomaly detection on the data your inverters, chargers or heat pumps already send.
from €[3,500]
Details →
How we work
Fixed scope agreed before we start. You own everything we produce.
01
Call
Twenty minutes. You describe what you need to measure and where.
02
Scoping document
Fixed scope, fixed price, named deliverables. Yours whether or not we build it.
03
Build, with weekly demos
Working hardware and real data every week, not a status report.
04
Handover
Source code, schematics, build instructions and documentation. No lock-in.
[Demo video: The Keep by Eldr Systems, 2 min]
Proof
All notes →What PSM actually negotiates, and why your battery estimate is wrong
The T3412 and T3324 timers your device asks for are a request, not a setting. The network decides. Here is how to find out what you actually got.
Three engineers in Budapest
You talk to the people who build it. There is no account manager.
Vencel Koczka
Co-founder · roleA
Bence Schoblocher
Co-founder · roleB
Boldizsar Karancsi
Co-founder · roleC
Where and how
- Based in
- Budapest, Hungary
- We work
- EU-wide, remote and on site
- Hours
- CET / CEST
- Languages
- English, Hungarian
- Contracts
- English
Tell us what you need to measure.
Book a 20-minute call
No pitch.