Smart retrofit for analog water meters with AI meter readingEvaraFlow
AI eyes on your water meter
Turns any existing analog meter smart with a clip-on camera and on-device Edge AI. No pipe cutting.
₹10Kper unit
- 8 MP
- Camera
- Up to 97%
- Digit recognition
- 14 days
- Battery backup
The problem
Why this exists.
Most water meters in India are analog, with spinning dials read manually once a month. No leak detection, no real-time data, and replacing them with digital meters costs thousands per meter, which is impossible for apartments, factories and municipalities with hundreds of meters.
How it works
The operating principle.
EvaraFlow clips onto the existing analog meter. Its camera captures the dial, an on-device AI model reads the digits, and the reading is sent to the cloud. No pipe cutting, no replacement, no plumber.
01
Clamp
The housing clips over the meter face. Nothing is cut, drilled or unplumbed.
02
Capture
An 8 MP Sony IMX219PQ camera photographs the dial on a schedule, with illumination compensation for angle and light.
03
Infer
A deep-learning OCR model runs on the onboard quad-core ARM processor, resolving digits at 97% accuracy, entirely offline.
04
Analyse
Night-flow analysis compares consumption against periods when nothing should be drawing water, surfacing silent leaks.
05
Report
Readings and anomalies stream to EvaraOne over whichever network the site already has.
Capabilities
What it does.
Easy retrofit
Plug-and-play installation on any analog meter.
AI digit recognition
Reads the dial on-device at up to 97% accuracy, offline.
Leakage detection
Night-flow analysis surfaces silent leaks nobody is watching for.
Local data storage
Images and readings are held on the device when the network drops.
Long battery life
Up to 14 days of backup.
Compact & durable
IP67 rated for real-world meter chambers.
Where it's used
Built for these places.
Retrofit-first, so it installs onto infrastructure that is already there. No pipe cutting, no civil work, no permits.
- Smart water distribution
- Irrigation management
- Industrial water systems
- Apartments & communities
- Commercial buildings
- Municipal water supply
See it work
This is what EvaraOne shows for it.
A live simulation of the EvaraFlow tile in the platform. The reading ticks, the trace draws, and you can cause the fault it exists to catch.
Flow
4.2L/min
- Nothing to report. Press a button above to cause a fault.
Questions
About EvaraFlow.
- Does EvaraFlow replace the existing water meter?
- No. It clips over the face of the analog meter already installed. Nothing is cut, drilled or unplumbed.
- How does it read the meter?
- An 8 MP camera photographs the dial on a schedule and an on-device model reads the digits at up to 97% accuracy, entirely offline. Readings and images are stored locally if the network drops.
- How does it find leaks?
- Night-flow analysis compares consumption against hours when nothing should be drawing water. Continuous flow at 2 a.m. is flagged as a probable leak.
Works with
Instruments deployed alongside it.
- EvaraValveIoT smart motorised valve for remote water controlTurns a conventional pipeline into a connected, remotely controllable, data-driven distribution system.EvaraValve details
- EvaraTankIoT overhead tank water level monitoringReal-time tank level, overflow and usage insights, measured without touching the water.EvaraTank details
- EvaraTDSIoT TDS and water quality monitoringInline TDS monitoring at RO outlets, running 24×7 with temperature-compensated readings.EvaraTDS details
Ready to make every drop measurable?
Talk to the team building the operating system for water infrastructure, from a single tank to an entire smart city.