Environmental Monitoring for Off-Grid Properties and Facilities

Know Your Water.
Before You Run Out.

HydroSentry monitors your water tank 24/7, predicts your supply using real weather forecasts, and alerts you across web, eInk display, and phone notifications — before a dry tap becomes a crisis.

Explore HydroSentry See Features

Any size tank capacity

7-day weather forecast

HydroSentry eInk dashboard showing tank level at 62%, current weather, 3-day forecast, and supply days remaining

Our Products

Purpose-Built Environmental Sensors

ClimaMon builds monitoring systems for the conditions that matter most to off-grid and rural properties and facilities.

Available Now

HydroSentry

Rainwater Tank Monitoring System

Real-time tank level monitoring with weather-aware supply forecasting. Multi-channel alerts via web dashboard, eInk display, and notifications to your phone. Built for off-grid properties and facilities.

Submersible stainless steel sensor
7-day weather forecast integration
Rain catchment calculation
Low-power 4" or 7" colour eInk display
Phone notifications (Charges may apply)

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Coming Soon

SoilSense

Soil Moisture & Nutrient Monitor

Continuous soil moisture, temperature, and nutrient tracking for gardens, orchards, and paddocks. Smart irrigation scheduling and drought early-warning.

Notify me when available

Coming Soon

AirTrace

Air Quality & Microclimate Sensor

Hyperlocal air quality, particulate matter (PM2.5/PM10), humidity, and UV monitoring. Wildfire smoke alerts and microclimate analytics for rural properties.

Notify me when available

Features

Everything You Need to Monitor Your Water

Real-Time Monitoring

Water level readings at regular time intervals throughout the day. ONLINE/OFFLINE status badge with time-since-last-reading. Lets you know if your sensor goes dark.

Weather-Aware Forecasting

Pulls a 7-day forecast from Open-Meteo and calculates how much rain will be caught by your roof (area × efficiency × mm). Predicts exact supply days remaining.

eInk Display

A colour eInk panel refreshes every hour — showing today's weather, tank level bar, 3-day forecast cards, and supply outlook. Readable in direct sunlight. Near-zero power draw.

Phone notifications

On-demand queries with a chatbot that will inform your of the tank's status and probability of rain in the next few days. Proactive low-water alerts delivered directly to your phone or group chat.

Web Dashboard

Interactive dashboard with different time range selector. Live tank fill bar colour-coded red below 20%, yellow below 40%, blue when it is above 40%.

In the Field

See HydroSentry in Action

Real screenshots from a live deployment monitoring a 20,000-litre rainwater tank on an off-grid property in Auckland, NZ.

HydroSentry web dashboard — dark theme showing tank ONLINE at 62% (12.4 kL), 7-day water level chart with descending trend, daily usage bars, weather forecast, and water outlook

Web Dashboard — Live tank level, Chart.js 7-day trend, daily usage bars, weather forecast, and water supply outlook

HydroSentry eInk display — 4-inch 6-colour Waveshare panel showing ONLINE status, current weather, tank level bar, and 3-day forecast cards

eInk Display — Hourly render: tank level, weather summary, and 3-day outlook on a 4 or 7 inch colour panel in a wooden frame.

HydroSentry deployment architecture diagram showing hardware connections from ESP32 sensor through Raspberry Pi to web, eInk, and Telegram outputs

Sensor installation — Installation consist of a stainless steel sensor that is submerged in the bottom of the rainwater tank with a cable that is linked to control box that communicates wirelessly with the rest of the system.

Know Your Water.Before You Run Out.