

🚨 Stay dry, stay ahead — the ultimate sump alarm for peace of mind!
The Liberty Pumps ALM-2-1 Alarm is a high-performance sump pump alarm system designed for sump, effluent, and sewage applications. Operating on 115V with a 9V battery backup, it features an 86 dB alarm, horn, and warning light activated by a float switch to alert you instantly of high water conditions. Easy to install and maintain, it includes a low battery chirp to ensure continuous protection, making it an essential safeguard for any basement or lift station.
| ASIN | B002YR49NQ |
| Batteries | 1 9V batteries required. |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #249,078 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #195 in Sump Pumps |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (147) |
| Date First Available | July 29, 2009 |
| Finish | No Finish |
| Included Components | ALARM |
| Item Package Quantity | 1 |
| Item Weight | 2 pounds |
| Item model number | ALM-2-1 |
| Manufacturer | Liberty Pumps |
| Part Number | ALM-2-1 |
| Power Source | Battery Powered |
| Sound Level | 86 Decibels |
| Thickness | 1 Inches |
| Voltage | 115 Volts |
| 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.
T**M
Warning system of failure
Basement lift station warning for failure. We hope we never have to hear it as it fails. But just in case.
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
D**B
A good buy
Purchased this for my sump pump. It appears well constructed, is easy to install. and the alarm float has plenty of cord to fit a variety of sump applications. It would have been nice to have extra contactors for a secondary alarm signal as the one on it is loud, but if your sump is flooding I would like to have something to wake me from a sound sleep. Nonetheless, the alarm volume is not anything to disuade me from recommending the alarm, but it is the reason I gave it four instead of five stars.
P**Y
Works perfectly
This is the brand that my Plumber recommended, and it works perfectly.
F**N
Fast delivery
Really good and bring a extra flotter
K**P
Worked Well
Great product
Trustpilot
3 days ago
2 months ago