Little Giant HW-9 Water Alarm
Best simple flood detector for homeowners needing reliable, battery-powered peace of mind.
A simple, reliable safeguard against basement flooding and pump failure. It provides an immediate audible alert when water levels rise, offering peace of mind for sump and sewage systems without the complexity of smart home integration.
$56.80
at
Esupplydepot
More HW-9 options
Who it's for
- Homeowners integrating alarms into existing HVAC or security systems
- Users needing reliable detection in dirty or sediment-prone environments
- Property owners prioritizing proactive protection against costly water damage
Who should skip it
- DIYers uncomfortable with basic low-voltage electrical wiring tasks
- Residents in areas prone to frequent or extended power outages
- Maintenance-averse users who neglect cleaning their condensate pans
Performance breakdown
Alarm Volume
85 decibels provides a piercing alert easily heard throughout the home.
Setup Simplicity
Battery-powered operation makes installation a quick, tool-free process.
Build Durability
ABS plastic housing offers reliable protection against moisture and minor impacts.
Reliability Assurance
Integrated test bar allows for frequent, effortless functionality checks.
Monitoring Reach
Six-foot cord provides decent placement flexibility for most sump pump setups.
Maintenance Awareness
Low battery indicator prevents unexpected downtime during critical monitoring periods.
Key Specs
Type
High Water Alarm
Voltage
9 V
Material
ABS Plastic Housing
Alarm Volume
85 dB
Battery Type
9V DC
Length
3-1/2 in
Width
1-1/2 in
Height
3-1/2 in
Cord Length
6 ft
Detection Cable Length
6 ft
Know before you buy
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Ask Metto anything about the Little Giant HW-9 Water Alarm before you decide.
