Real-time tank monitoring for rural properties. Your plumber installs a small sensor, and you check your water level any time — from your phone or computer.
A small waterproof sensor mounts inside your tank. Connects to your home WiFi — no separate hub needed.
The sensor measures water depth and sends readings over your WiFi — once a day on Free, and every 15 minutes on Plus and Pro.
Open the web app on any phone or computer. See your current level; upgrade for history, trends, and alerts.
Current level in litres and percentage, always up to date. Know exactly how much you have before you need it.
Track usage over time. Spot drops that suggest a leak. See average daily use and estimated days until empty. (Plus & Pro plans)
Monitor all your tanks from one account. Group tanks that serve the same house. Share access with family members. (Plus & Pro plans)
Works in any browser on any device — phone, tablet, or computer. Nothing to download, nothing to update.
The free plan gives you real-time visibility over your water level. Upgrade for history, insights, and alerts.
| Feature | Free | Plus | Pro | Enterprise |
|---|---|---|---|---|
| Current water level | ✓ | ✓ | ✓ | ✓ |
| Update frequency | Daily | 15 min | 15 min | 15 min |
| Usage history | 7 days | 90 days | Unlimited | Unlimited |
| Avg daily use & days until empty | — | ✓ | ✓ | ✓ |
| Share access with family | — | ✓ | ✓ | ✓ |
| Group tanks | — | ✓ | ✓ | ✓ |
| Leak & level alerts by email | — | — | ✓ | ✓ |
| Date range analytics | — | — | ✓ | ✓ |
| Max tanks | 1 | 10 | 10 | Unlimited |
| Price (NZD/month) | Free | $2 | $8 | Contact us |
The free plan stores one reading per day — enough to check your level and see general trends over time.
The Plus plan stores a reading every 15 minutes, giving you a clear picture of how your level changes throughout the day.
The Pro plan reads at the same 15-minute cadence as Plus — its extra value is in deeper history and analysis tools, not a faster reading rate.
Built for the reality of tank-fed properties — unreliable rain, big tanks, and the need to know before you run dry.
Create a free account with your email address. Once your sensor is installed and connected to WiFi, open the Piha Tank Watch app, enter your tank details, and you're in — no waiting for your plumber to set anything up.
Talk to your local plumber about installation. Already working with us? Get in touch below.
Interested in having Piha Tank Watch installed, or want to know more?
Email usWe'll get back to you within a day.