W-Sensor: Revealing the blindspots

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The foundation of Waltero’s smart monitoring solution — built to endure, adapt, and deliver clarity from the most complex environments.
 Every insight starts here. W-Sensor is our advanced monitoring device designed to capture the data that matters most, no matter the conditions. Rugged, accurate, and ready to integrate with your existing systems, it’s the first step in turning noise into knowledge.

When failure goes undetected, 
people pay the price
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The foundation of Waltero’s smart monitoring solution — built to endure, adapt, and deliver clarity from the most complex environments. Every insight starts here. W-Sensor is our advanced monitoring device designed to capture the data that matters most, no matter the conditions. Rugged, accurate, and ready to integrate with your existing systems, it’s the first step in turning noise into knowledge.

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Built for those who keepthe world running

From water to energy to infrastructure — W-Sensor empowers you to prevent failures, protect resources, and build trust through reliability.

Engineered for accuracy.
Built for resilience.

Not all sensors are created equal — W-Sensor sets the standard.

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Edge intelligence

detects anomalies instantly without waiting for the cloud.

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Seamless integration

no need to replace existing systems.

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Durability

engineered to withstand harsh environments, from pipelines to power plants.

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Versatility

adaptable to countless use cases across industries.

Built on certified quality

Certified to perform where safety, compliance, and reliability matter most. W-Sensor meets international standards, so you can deploy with confidence anywhere in the world. With certifications including PTCRB, CE, FCC, and C1, every device is validated for quality, safety, and interoperability. Because your operations deserve nothing less.

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Trusted in critical industries worldwide

W-Sensor: the little box that masters big problems. From safeguarding resources to keeping operations smooth, it’s the secret weapon leaders don’t brag about (but probably should).

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Trusted by industry leaders

- John Hägg, Development Engineer, VA SYD

We have a good collaboration with Waltero, and their product has already provided significant benefits to our operations at an early stage. Our team is now able to perform visual inspections from the office instead of having to drive out to the monitored facilities.

- John Hägg, Development Engineer, VA SYD
- Olivier Carmona, Founder, HydrIoTee

What convinced me about Waltero’s W-Sensor is how quickly it adapts to real field needs. In our projects — from sub-metering for landlords to leak detection for public utilities — it has always offered a simple and effective deployment, where other solutions were too heavy. For our customers, it’s a real gain in both time and trust in their data.

- Olivier Carmona, Founder, HydrIoTee
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Smarter insights start with Mimir

Book a live demo and see how predictive intelligence can transform your operations.

New generation · W-Sensor V2

See every meter.
Even the hard ones.

W-Sensor V2 reads more meters, more accurately, and keeps working where connectivity doesn't. A full year of field learnings, built into one new generation of the sensor.

New on-device AI reading engineReads digits and analog dials right on the sensor. No connection needed to read.
Keeps measuring through outagesBuffers readings offline and sends everything once the connection is back.
App-ready by designOnly V2 works fully with the Waltero installation app.
Explore what's new in V2Seven upgrades, one sensor — or tap a card to jump straight in.Seven upgrades, one sensor — tap a card to jump to it below.
What's new in V2

Seven upgrades. One sensor built for the field.

Pick a benefit to see what changed. Everything listed ships in V2 today unless it's marked otherwise.

Reads more meters, more accurately

A brand-new on-device reading engine finds the meter, isolates each digit and reads it — then checks the result against the meter's own history. Clock-style analog dials are now in scope too.

  • Next-generation neural reading engine A modern on-device detector and classifier, for markedly more reliable readings — with no connectivity required to read.
  • History-aware reading Every reading is cross-checked against the meter's recent trend, so a single misread digit can't corrupt the number.
  • Analog dial & gauge reading Reads clock-style needle meters, with colour-aware needle detection — a whole new class of meters V2 can serve.
  • Reliable rollover handling Consumption stays correct when the counter wraps (…9 → 0…).
  • Self-healing framing If reads start failing, the sensor automatically re-locates the meter window.
  • Cloud-tunable accuracy Reading confidence and framing can be tuned per fleet, remotely.
  • Broad camera-module support One firmware supports many camera modules, including 5 MP — simplifying hardware supply.

Connectivity you can rely on — and see

Connectivity is the pain point customers feel most in the field. V2 connects the best way each site allows, adapts to the local network, and shows operators exactly how well every sensor is connected.

  • Multi-transport by design Low-power cellular (Cat-M / NB-IoT) or Wi-Fi, so each site connects the best way available.
  • Works across geographies Automatic band selection finds workable cellular bands without per-site or per-carrier tuning — smoother rollouts across regions and networks.
  • Connectivity you can see Every reading carries live signal strength, signal quality, network mode and SIM identity — at-a-glance visibility per site and faster field triage.
  • Keeps measuring through outages Reads and safely buffers offline, then flushes on reconnect. A weak or intermittent link never means missing data.
  • Prepared for Cat-1bis Prepared The firmware is built ready for Cat-1bis (higher-throughput LTE), to widen carrier and coverage options further.
  • Prepared for CoAP Prepared A lightweight secure transport that removes per-image handshake overhead and makes image transfer faster and more reliable — a dropped connection resends only the missing piece of an image.

Longer battery life

An overhauled power-saving mode keeps the sensor asleep longer between reports, and trims the everyday draw everywhere else.

  • Deeper modem sleep Keeps the modem dormant longer between reports.
  • Idle-sensor power-down The motion/wake sensor powers off when not in use.
  • Scheduled reporting The sensor transmits only in operator-chosen windows.
  • Lower everyday draw A dimmed status LED and leaner Wi-Fi behaviour reduce awake time.
  • Less flash wear Rolling out Far fewer storage writes per reading cycle extend device lifetime — in final validation, rolling out to the newest units.

Secure by design

Only authentic Waltero firmware runs on the device, data is protected at rest and in transit, and hardening is an ongoing programme rather than a one-off.

  • Supports hardware secure boot & signed firmware So only authentic Waltero firmware runs on units built and provisioned for it.
  • Encrypted on-device storage Protects data and IP against physical extraction.
  • Encrypted cloud links TLS-secured communication to the platform.
  • Verified configuration Coming The sensor will cryptographically verify configuration sent from the cloud before applying it.
  • Continuous hardening An ongoing security-remediation programme across the firmware.

Serviceable from anywhere

Upgrade once, manage forever. Fleets are updated, tuned and diagnosed from the cloud — without site visits.

  • Over-the-air firmware updates Upgrade whole fleets without site visits; the sensor improves over the air with firmware updates.
  • Live remote configuration Reading intervals, camera, framing, thresholds and connectivity changed from the cloud.
  • Remote diagnostics Pull or clear stored images and logs, force a time resync, and read best-practice diagnostics remotely.

Rugged reliability

Hardened against the things that actually go wrong in the field: patchy networks, bad input and misbehaving servers.

  • Keeps measuring through outages Reads and buffers offline, flushes on reconnect.
  • Crash-hardened A broad robustness pass against field crashes.
  • Tamper-proof against bad input Malformed cloud configuration can't crash or misconfigure the device.
  • Battery-safe back-pressure Bad images or servers can't drain the battery in a retry loop.

Faster, app-guided installation

V2 and the Waltero installation app together give installers a guided, phone-based commissioning and servicing experience — live camera framing, on-the-spot alignment, sensor replacement, meter-photo capture and per-site device management.

  • Phone-based commissioning Installers configure and confirm a sensor over a local Wi-Fi hotspot — no cloud round-trip needed.
  • Live camera view + on-the-spot alignment The installer sees the meter framing and rotates the image to get it right the first time.
  • Faster first-time-right installs Fewer callbacks, cleaner data from day one.
Only V2 is fully compatible with the Waltero installation app. Upgrading the sensor unlocks the modern field workflow end to end.

Trusted by water utilities, hotel groups and industrial operators. Inspired by our customers. Built for the field.

H&M
Marriott Hotels
“Every reading comes in on the hour, so the data is more accurate than manual rounds ever were. The team went from walking the building to acting on alerts.”
Peter MichalAssistant Director of Engineering
VA SYD
66%fewer truck rolls
Grundfos
Sweco
Hilton
ATOM Operations Ltd.
“Remote physical readings from bulk water meters, with no billing discrepancies. With the IP68 enclosure we deploy it in some of the worst installation conditions.”
Pieter de WetCOO, ATOM Operations Ltd.
Elisa
Beulco
Vodafone
EMASESA
Expanding storm water monitoring in SevilleVision AI · CSO & storm water
Gruppo CAP
InterContinental
NSVA
Mansour Energy
Aquanexa
Sydvatten
Gallarus
Metasphere
WIONIQ
PwC
Rhino
Dots
EnergyPal
HydrIoTee
“It adapts to real field needs. From landlord sub-metering to utility leak detection it deploys simply where other solutions were too heavy.”
Olivier CarmonaFounder, HydrIoTee
Worldly

Installation

From meter to Mimir in under 5 minutes

No electrician. No service interruption. No specialized tools. The Waltero Setup app for iOS and Android guides every install and confirms the reading before the installer leaves the site.

Install time

0:00/ 5:00

✓ Installed and verified

Clip on adapter

Place sensor

Press to power on

Waltero Setup

Installer

New installation

Mount the adapter and sensor on the meter, power it on, then start the setup.

Waiting for sensor…

Start setup

Device Setup

Pair sensor

Point the camera at the QR code

W-SENSOR · SN 2237

Sensor 2237 found

Paired with your Mimir account

Device Setup

Sensor 2237

Testing Connection

Running connectivity test…

  • LTE-M network registeredOK
  • Signal qualityGood
  • Mimir cloud reachedOK
Continue

Meter Details

Sensor 2237

Cloud Settings

Let's fill out the administrative details for your device.

External device ID
Location
Installation photo
Tap to take photo
Save & continue

Meter Preview

Sensor 2237

00613

5 digits found. High confidence (90% avg)

Meter Reading

Review the detected reading. Retake if the digits are incorrect.

✕ Retake✓ Accept

Installation complete

Sensor 2237

You're all set

The sensor is installed, connected and reading correctly.

DeviceMain meter – Building A
First reading00613 m³
Sent toMimir cloud
Install time4:20
Install next sensor
  • Under 5 min per install
  • 15–20 meters per technician a day
  • iOS & Android
Talk to an expert

W-Sensor Datasheet

W-Sensor
technical file

Download the Datasheet
Here you go
W-Sensor - Edge AI, IoT sensors