
IoT rain gauge for real-time rainfall monitoringEvaraRain
Hyperlocal rainfall intelligence
Precision tipping-bucket rain gauge for hyperlocal rainfall, flood warning and harvesting insight.

- 0.2 mm per tip
- Resolution
- ±2%
- Accuracy
- 2 years
- Battery life
The problem
Why this exists.
Rainfall data is regional when decisions are local. Harvesting systems get installed then forgotten, reservoirs are managed on stale forecasts, and flood warnings arrive too late to act on.
How it works
The operating principle.
EvaraRain measures precipitation in real time with a precision tipping-bucket gauge, transmits wirelessly, and feeds hyperlocal rainfall data into forecasting, flood early-warning and harvesting analytics in EvaraOne.
01
Collect
A precision tipping-bucket gauge registers a discrete tip per fixed volume of rainfall.
02
Count
Tips are counted and timestamped, giving both total depth and intensity over time.
03
Transmit
Low-power wireless uplink reports continuously from unattended field sites.
04
Model
Data feeds flood prediction, reservoir and watershed monitoring, and research datasets.
Capabilities
What it does.
Accurate measurement
High-precision tipping bucket, 0.2 mm per tip.
Real-time data
Live rainfall depth and intensity streamed to EvaraOne.
Smart alerts
Instant notification for heavy rainfall and threshold breaches.
Self-emptying design
Prevents overflow and keeps measurement accurate unattended.
Two-year battery
Low-power design for remote field sites.
Weatherproof
UV-resistant IP65 body built for permanent outdoor exposure.
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 cities & municipalities
- Flood monitoring & early warning
- Water resource management
- Agriculture & irrigation planning
- Dams, reservoirs & watersheds
- Industrial & construction sites
- Weather stations & research
See it work
This is what EvaraOne shows for it.
A live simulation of the EvaraRain tile in the platform. The reading ticks, the trace draws, and you can cause the fault it exists to catch.
Rainfall
0.4mm/h
- Nothing to report. Press a button above to cause a fault.
Questions
About EvaraRain.
- How accurate is EvaraRain?
- Each tip of the bucket registers 0.2 mm of rainfall, with 2% accuracy across 0 to 9999 mm of depth and 0 to 300 mm per hour of intensity.
- Does it need emptying?
- No. The tipping bucket empties itself, so it runs unattended for the life of its two-year battery.
- How is it mounted and how does it report?
- Pole or flat mount, IP65 rated, reporting every 1 to 15 minutes over 4G, NB-IoT, WiFi or LoRaWAN into EvaraOne.
Works with
Instruments deployed alongside it.
- EvaraDeepIoT borewell and groundwater level monitoringLive borewell water level, runtime and dry-run protection, with no electronics inside the well.EvaraDeep details
- EvaraTankIoT overhead tank water level monitoringReal-time tank level, overflow and usage insights, measured without touching the water.EvaraTank 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.
