ADAPTIVE WATER-RISK SENTINEL

Water changes.
Know when.
Know what’s next.

Detect change early. Preserve evidence. Act faster.

A sensor node that learns one water point’s normal behaviour, flags unusual change, and puts a named operator in charge of the next step.

Screening & workflow. Accredited laboratories confirm the cause.
HYDROPHILIC NODE 001
Always listening.
Locally intelligent.
ESP32-S3ADS1115SD + RTC
pH · EC / TDS · TURBIDITY · TEMPERATURE
GREEN — NORMAL-BASELINELearning this water point’s normal.No drinking-safety conclusion has been made.
01°18′ S   36°49′ E NAIROBI, KENYA
≈31mKenyans served outside a regulated utility¹
57%of Kajiado boreholes above the fluoride limit²
4explainable states. None gives a drinking verdict.

¹ WASREB Impact Report 18 (FY 2024/25): 22.8m of ≈54m Kenyans are served by a regulated utility. ² Kenya Water Institute study of 277 borehole water-quality reports (2022).

FROM SIGNAL TO RESPONSE

A closed loop. A human decision.

The alert is the beginning.
The evidence and response are the product.

01

Measure

Five probes. One water point.

02

Learn

An hourly, site-specific baseline.

03

Detect

Explain the unusual change.

04

Preserve

Log, label and capture a sample.

05

Confirm

Laboratory result. Operator closure.

GREEN — NORMAL-BASELINE

Normal for this site

Continue monitoring the learned baseline.

No drinking-safety conclusion has been made.
AMBER — WATCH

Watch the change

Repeat measurement; inspect the chamber.

No drinking-safety conclusion has been made.
RED — SAMPLE

Preserve evidence now

Take a labelled sample; follow the response plan.

No drinking-safety conclusion has been made.
GREY — SENSOR FAULT

Service the sensor

Exclude faulty measurements from risk decisions.

No drinking-safety conclusion has been made.

BUILT AT THE INTERSECTION

Water. Engineering. Law.

Gitahi Githinji

Hardware + water · Electrical & Electronic Engineering

Nguitui Ryan

Firmware + AI · Electrical & Electronic Engineering

Michelle Kombo

Product + regulation · Strathmore Law School

Strathmore University Ideas Festival 2026 · Technology & Data Innovations for Smart Water Management & Security