Liberty Pumps ALM-2W Indoor/Outdoor High Liquid Level Alarm
Best reliable flood protection for homeowners with sump or sewage systems.
The Liberty Pumps ALM-2W is a reliable indoor/outdoor high water alarm designed for residential applications. It provides essential notification for sump, sewage, effluent, grinder, and other water systems, ensuring peace of mind against potential flooding. This alarm operates independently of the pump, offering universal compatibility. Its durable, NEMA 3R rated construction makes it suitable for various environments, and installation is straightforward with a 20ft float cord and hardwired power connection. The ALM-2W features an 82 dB horn and LED beacon for clear alerts.
$191.25
Owner Satisfaction
4.7
/ 5
Category Rank
1
/ 70
Best Water & Flood Detectors
Price vs Category Average
+13%
Above average
Model
2
/ ALM-W
Who it's for
- Homeowners needing reliable notification in noisy or dark environments
- Property owners requiring durable protection for outdoor sump pump systems
- DIY enthusiasts looking for a quick and straightforward setup process
Who should skip it
- Residents in areas prone to frequent power outages
- Users wanting a hands-off system for intermittent water level issues
- Property owners managing tanks with high debris or sludge content
Performance breakdown
Environmental Durability
NEMA 3R rating ensures reliable performance in harsh indoor or outdoor conditions.
Alert Visibility
Bright LED beacon provides immediate visual confirmation during high-water events.
Audible Output
The 82 dB horn cuts through ambient noise to ensure timely warnings.
Installation Versatility
Universal compatibility allows for seamless integration with most existing pump systems.
Setup Complexity
Hardwired connection requires basic electrical knowledge for a secure, permanent installation.
System Reliability
Independent operation guarantees monitoring even if the primary pump system fails.
Key Specs
Model
ALM-2W
Type
Indoor/Outdoor High Water Alarm
Application
Water level monitoring
Alarm
82 dB horn & LED beacon
Electrical
115V, hardwired (no plug), 20ft float cord
Float Type
Wide angle, fits up to 3" discharge pipe
Certifications
NEMA 3R watertight
Warranty
3-year warranty
Features
- Provides high water level notifications
- Suitable for indoor and outdoor use
- Universally compatible with pump systems
- Loud 82 dB audible alarm
- Bright visual LED beacon alert
- Durable NEMA 3R watertight construction
- Easy installation with 20ft float cord
- Integrates with other systems via auxiliary contacts
What customers say
Customers overwhelmingly value the Liberty Pumps ALM-2W for its exceptional reliability and robust functionality as a critical fluid level alarm. The core sentiment centers on the profound peace of mind provided by its loud, unmistakable alert system, ensuring prompt notification of potential system failures. Users highly praise the durable NEMA 4X enclosure, which guarantees longevity against harsh indoor or outdoor conditions. Installation is consistently reported as straightforward and user friendly, integrating easily into various pump setups. While the initial cost is noted, the consensus is that the superior build quality and dependable performance fully justify the investment, viewing the device as essential insurance against costly water damage.
Know before you buy
Yes, the unit features a NEMA 3R-rated enclosure, which is specifically designed to be weather-resistant and suitable for both indoor and outdoor installations.
No, the ALM-2W is a hardwired device designed to be connected directly to your electrical system. It does not come with a standard plug.
Yes, the ALM-2W operates independently of your pump system. Because it uses its own float switch to monitor water levels, it is universally compatible with any sump, sewage, or effluent pump.
The unit features an 82 dB horn, which is designed to be audible in most residential settings. It also includes a bright LED beacon to provide a visual alert if you cannot hear the sound.
The included float switch comes with a 20-foot cord, providing plenty of reach to position the sensor correctly within your basin or tank.
Yes, the ALM-2W includes auxiliary contacts that allow you to integrate the alarm with external monitoring systems or home automation controllers.
Still have a question?
Ask Hayley anything about this product before you decide.