Connect your NeerScan
Power on the device, keep it within a metre of your phone, then tap below to pair over Bluetooth.
Fill a clean cup or cuvette with distilled/bottled water.
Pair the sensor over Bluetooth using the button above.
Calibrate once so every reading compares against clean water.
Web Bluetooth needs Chrome or Edge on Android (or desktop). On iPhone, Safari doesn't support it yet — open this page in Chrome on an Android phone, or use Demo mode to preview the app.
Latest result
No readings yetRun a test to see your water quality summary here.
Recent scans
Your scan history will appear here.
Test result
—Run a test to generate a report.
Calibrate with clean water
Fill a cup with distilled or bottled water. Place the sensor face-down over it, blocking out ambient light.
- Water is clean / distilled, not tap water
- Sensor sits flush against the container
- No direct light leaking around the sensor
Calibrating…
Taking reading 1 of 5
Baseline saved
Stored to the device's flash memory — it'll persist even after power off. Now empty the cup and add your test sample.
Device & app
WHO reference guide
NeerScan v3.0
Baseline Calibration Edition
V.V.P. Engineering College, Rajkot
Team: Harsh Sabhaya · Krish Sardhara · Nevil Sorathiya
App build 1.0 — companion for the NeerScan ESP32 spectral sensor.