

🚨 Stay ahead of floods with Liberty Pumps ALM-2-1 — your silent guardian in black!
The Liberty Pumps ALM-2-1 Alarm is a robust sump and sewage alarm system featuring 115V operation with a 9V battery backup, an 86 dB horn, and a warning light to alert you of high water conditions. Designed for easy installation and reliable performance, it includes a low battery chirp to ensure continuous protection. Ideal for professionals seeking dependable flood safety solutions.
| Manufacturer | Liberty Pumps | 
| Part Number | ALM-2-1 | 
| Item Weight | 2 pounds | 
| Item model number | ALM-2-1 | 
| Batteries | 1 9V batteries required. | 
| Color | Black | 
| Finish | No Finish | 
| Thickness | 1 Inches | 
| Power Source | Battery Powered | 
| Voltage | 115 Volts | 
| Item Package Quantity | 1 | 
| Sound Level | 86 Decibels | 
| Included Components | ALARM | 
| Batteries Included? | No | 
| Batteries Required? | No | 
| Warranty Description | Liberty Pumps, Inc. warrants that pumps and other products of its manufacture are free from all factory defects in material and workmanship for a period of 2 years from the date of purchase. | 
T**C
Works as described.
Been working without issue for over a year.
F**N
Fast delivery
Really good and bring a extra flotter
E**H
Its loud
Worked perfect for my liberty pump pro 380 sewage simplex system. This model of alarm is for indoor use only. I would recommend getting the alarm float pre-installed if you are buying a liberty simplex system. Its easy to do but pretty nasty if the unit has been used. The 9 volt battery backup is a nice touch.
R**E
Does not have battery backup
Does not have battery backup which is required by most inspectors on sewer systems
L**Y
As advertised
Delivered as promised, They follow up to confirm. Alarm easy to install with minor modification at our home. Works great with Liberty 370 system.
R**T
Alarm works great. Issue with back-up battery.
The back-up 9v Battery fits very tight and located up into the Alarm housing. Almost impossible to remove. Manufacturer provides a piece of tape to attach to the side of the battery making it easier to pull the battery out of the housing. Worked good for one time. Do yourself a big favor and tie a piece of string in a loop around the battery with enough room to fit your thumb or a pair of pliers into the loop. Should have plenty of room to push the battery up into the housing and makes battery replacement easier.
P**Y
Works perfectly
This is the brand that my Plumber recommended, and it works perfectly.
K**P
Worked Well
Great product
Trustpilot
1 day ago
5 days ago