NOWA 4Se : Water leak detection and control system
NOWA 4Se
residential system
Water leak detection and control for single-family homes
The system offers essential features to protect your home from water damage at an affordable price.
When a water leak occurs, every second counts. That’s why we designed a water leak detection and control system that acts like a silent guardian. It watches over your home around the clock and self-tests regularly to ensure it’s always ready. Be protected when it matters most.
4Se kit and accessories
The NOWA 4Se residential water damage prevention system is sold as a complete kit that includes a smart control panel, five wireless sensors, an automatic shut-off valve, and the basic PRESENCE service plan.
If needed, you can purchase additional sensors and accessories for more comprehensive protection.
2.0 water and freeze sensor
Sends a notification to the central panel when water is detected or temperature drops below 5°C (41°F)
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2.0 sensor with cable
Sensor connected to a cable that extends the water and freeze detection zone
Buy nowNOWA 4Se panel
Smart central hub that controls water intake via Wi-Fi based on detections and requests
Automatic shut-off valve
Installed directly on the water main, instantly shuts off water at source when a leak is detected
Buy nowAdvanced PRESENCE service plan
Customer service, emergency support, mobile app, proactive system monitoring, and extended warranty on components
More infoOptional equipment
Backup battery
Allows the control panel to remain powered in the event of a power outage
View productNOWA 4Se benefits
The day a water leak occurs in your home, only one thing will matter: the choice you’re about to make right now. By choosing a NOWA 4Se system for your home, you can rest assured you’ve done all it takes to prevent the worst. NOWA delivers reliability and simplicity at an affordable price.
Reliability
Whether a water leak occurs when you’re away, day or night, tomorrow or ten years from now, it will be quickly detected and stopped with NOWA 4Se.
With a 0.4 mm (0.015 in.) clearance between its detection poles and the floor, the second-generation NOWA water sensor can spot a puddle as small as the one left by a glass of water. As soon as water touches 2 of the 4 contact poles, a signal is sent. Within seconds, the main water supply shuts off to prevent potentially catastrophic damage.
The connection between the sensors et the valve control unit is critical. That’s why NOWA 4Se uses low frequencies (319 MHz) as its communication method. They ensure a constant signal free from any interference. This radio frequency system is proven, secure, and powerful. It can cover an area of up to 5,000 sq. ft. Perfect for covering an entire home.
The electric valve is connected to the control panel via hardwire. The valve’s response to an alert is therefore fail-safe and extremely fast. In the event of a power outage, the system continues to operate thanks to its integrated backup battery. The battery has a 7-year lifespan, and you’ll always be notified when it reaches a low level.
The 4Se system performs regular routine self-tests. You can be assured that the valve and all sensors will be working when it really matters.
Detection tests
The 4Se control unit checks for the presence of the sensors every day. You’re notified if one of them stops responding, with its precise location.Valve tests
Every week, the electric ball valve performs a closing and reopening cycle. Through this simple rotation, it validates proper operation while extending its lifespan to over 100 years.Simplicity
The user was placed at the center of every aspect of the NOWA 4Se system during its design. Choose the system that simplifies your life.
NOWA’s fourth-generation systems are the only ones to offer a screen. They communicate in clear, understandable language that doesn’t just beep when something is wrong. The control panel screen tells you what’s happening during an event. And it serves as a guide to help you use the system.
Clear alert display
Event description
Sensor identification
Built-in user guide
Using the control panel comes down to three buttons. Each has a simple, well-defined function highlighted by an icon. The button backlighting also serves as a visual guide indicating the next required action.
Reset
Open valve
Close valve
In addition to the information displayed on the screen, the LED indicator informs you of the system's overall status using a color code.
Blue: System ok
Red: Alarm
Alternating red/blue: Alarm (can be reset)
Yellow: Trouble
Alternating red/yellow: Alarm and trouble
You put effort into your interior design—there’s no reason to compromise it with a device that clashes with your decor. Small, slim, and simple in appearance, the sensors were also designed to discreetly fit into any setting and can easily slide under any household appliance that requires monitoring.
The sleek, timeless design of the 4Se control panel blends seamlessly with any home style.
Connectivity
NOWA 4Se meets the highest Canadian industry and cybersecurity standards for connectivity and security.
A built-in Wi-Fi connection within the 4Se control panel ensures continuous service and seamless synchronization with the PRESENCE mobile app and the NOWA management portal, which delivers notifications and communications to users.
One glance says it all. The NOWA PRESENCE app isn’t just pleasant to use thanks to its modern design; it was designed to be intuitive, no-nonsense, and easy to navigate.
Get a complete overview of your system’s status.
Quickly identify sensors in alarm status.
Control the electric valve remotely.
Receive instant event notifications.
Configure and manage your system.
Control your home’s main water supply wherever you are, whenever you want. Ever left for vacation forgetting to shut off the water as a precaution? With the PRESENCE mobile app, immediately close the valve remotely and reopen it when you return.
When the NOWA 4Se residential system alerts you to an incident, the worst has already been avoided. The water leak has been stopped and you immediately receive a notification.
The exact time and location of the leak are identified. You can therefore act quickly, fix the problem at its source, and mop up the puddle if needed. All this without wasting time trying to find the leak.
The technology and features built into the 4Se system and the PRESENCE mobile app are cutting-edge and future ready. You’ll never have to worry about your system becoming outdated.
Many other features
In addition to the essential features required to fulfill its core mission, NOWA 4Se offers many additional benefits.
A built-in sensor notifies you of a freeze risk as soon as the ambient temperature drops below 5°C (41°F).
The perimeter sensor allows you to extend coverage to confined or larger areas. For example, you can cover the perimeter of a water heater or even secure the area of an entire room.
The NOWA PRESENCE app provides detailed monthly reports on your system’s events. An annual report is also available to meet the requirements of certain insurers.
Reliability
Whether a water leak occurs when you’re away, day or night, tomorrow or ten years from now, it will be quickly detected and stopped with NOWA 4Se.
Simplicity
The user was placed at the center of every aspect of the NOWA 4Se system during its design. Choose the system that simplifies your life.
Connectivity
NOWA 4Se meets the highest Canadian industry and cybersecurity standards for connectivity and security.
Many other features
In addition to the essential features required to fulfill its core mission, NOWA 4Se offers many additional benefits.
