Never Run Out of Water.
Smart water tank controllers that monitor level, auto‑fill, prevent dry run, and send alerts to your phone. Save water and electricity.
Smart Water Management Made Simple
Smartphone Monitoring
Check water level, pump status, and consumption history from anywhere using our mobile app. Real-time alerts included.
Automatic Fill Control
Pump turns on when water drops below a set level and stops at full – no more overflow or dry running.
Smart Sensor Technology
Ultrasonic or pressure‑based sensors provide accurate level readings without touching the water.
Dry Run Protection
The system automatically cuts off the pump if water source runs dry, preventing damage.
Leak & Overflow Alerts
Get instant push notifications if a leak is detected or if the tank overfills due to sensor failure.
Scheduled Pumping
Set timers to fill tanks during off‑peak electricity hours (e.g., 2 AM – 5 AM) to save costs.
Water Usage Analytics
Track daily/weekly consumption graphs. Identify unusual usage patterns and save water.
Choose the Right Water Controller
From basic auto‑fill to industrial smart monitoring – find your solution.
Basic Auto Fill
Float switch based automation. Turns pump on/off based on water level. No mobile app. Reliable and low‑cost.
- Two float switches (low & high)
- Pump relay with manual override
- Dry run protection (optional)
- LED indicators
Smart Wi‑Fi Controller
Ultrasonic sensor + Wi‑Fi module. Full remote monitoring and control via smartphone app.
- Real‑time level % display
- Push notifications
- Scheduling & timers
- Voice assistant support
Industrial Level Controller
4‑20mA pressure transmitter or radar sensor. PLC compatible. For large tanks and borewells.
- 0‑10V / 4‑20mA output
- RS485 Modbus integration
- High accuracy ±0.5%
- Explosion‑proof options
Solar Pump Controller
Integrates with solar pump inverters. Prioritises solar power and automatically switches to grid if needed.
- MPPT compatible
- Dry run & low sunlight protection
- Remote monitoring via GSM
- Battery backup option
10,000+
Litres Saved Daily
Every Drop Counts
Water tank overflow and dry pumps aren’t just annoying — they waste money and a precious resource. Our smart controllers take the guesswork out of water management. Sensors track the exact level, the system fills only when needed, and your phone alerts you before a drop is wasted.
Whether it’s an overhead tank in your apartment, a sump in your villa, or an industrial cooling tower, the automation adapts. You can set schedules to fill during cheap‑rate hours, cut off the pump if the source runs dry, and review consumption graphs to spot leaks. No more midnight trips to the switch — just clean, automatic water supply.
- Auto‑fill based on real‑time water level
- Instant alerts for overflow, leak, or dry run
- Schedule pumping for off‑peak electricity savings
- Track daily usage and detect abnormal consumption
How It Works
From inspection to ongoing support – we make water automation effortless.
Site Survey
Our technician visits to inspect your tank size, pump type, and power availability. We identify sensor placement.
Requirement Analysis
We discuss automation features you need: auto fill, dry run, timers, remote access, and integration with existing systems.
System Design
We design a custom wiring diagram, select appropriate sensors (ultrasonic / float / pressure), and controller.
Installation
Our team installs sensors, controllers, and wiring. We connect the pump relay and test all functions.
Testing & Training
We simulate low/high levels, test dry run protection, and train you on the app and manual override.
Maintenance Support
1‑year warranty on parts, lifetime support. Annual cleaning of sensors and controller firmware updates.
Common Questions
What our clients say about us
Trusted by 1,200+ happy customers across Tamil Nadu for gate automation, smart home, and more.
Karthik V
Trichy
"The team from One Key Automation was friendly, professional, and fast. They helped us with gate automation and video door phone. Highly recommend them!"
Karthik V
Trichy
"The team from One Key Automation was friendly, professional, and fast. They helped us with gate automation and video door phone. Highly recommend them!"
Deepa Shanmugam
Erode
"I got the complete home automation package for my new house in Erode. Everything works perfectly, and support is just a call away."
Suresh Babu
Coimbatore
"One Key Automation transformed our home into a smart home! The app is seamless, and the team was thoroughly professional throughout."
Stop Wasting Water & Electricity
Get a free site survey. Our engineer will inspect your tank and pump, then give you an exact quote — zero obligation.