






Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Indonesia.
⚡ Never miss a beat—power outage alerts that keep your life running smoothly!
The Satisure Power Failure Alarm delivers a powerful 110dB alert with 7 selectable sirens and a clear LED indicator to monitor power outages in real-time. Featuring a rechargeable battery that supports up to 12 hours of repeated alerts, it ensures continuous protection for your freezer, refrigerator, sump pump, aquarium, and other critical appliances. Its pass-through socket design saves space by allowing direct appliance connection, while easy setup and customizable volume make it a must-have for proactive home and appliance safety.






| ASIN | B0CZMGL2D2 |
| Audible Noise | 110 Decibels |
| Best Sellers Rank | #4,599 in Electronics ( See Top 100 in Electronics ) #14 in Security Horns & Sirens |
| Brand | Satisure |
| Built-In Media | 1 Pack Power Failure Alarm |
| Color | Black |
| Compatible Devices | [Inferred: Devices requiring power for monitoring] |
| Control Method | Touch |
| Customer Reviews | 4.5 out of 5 stars 1,347 Reviews |
| Manufacturer | Satisure |
| Model Number | L5 |
| Mounting Type | Wall Mount |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Power Source | Battery Powered |
| Sensor Technology | Contact Sensor |
| Smart Home Compatibility | Not Smart Home Compatible |
| Unit Count | 1.0 Count |
F**N
Reliable and Easy-to-Use Power Failure Alarm with Adjustable Alerts
I’ve been using the Power Failure Alarm for my freezer and refrigerator, and I’m really impressed with its functionality. It provides peace of mind knowing I’ll be alerted if there’s a power outage or temperature issue with my appliances. Here’s a breakdown of my experience: What I Like: Adjustable Alarm Volume (0-110 dB): The adjustable volume feature is fantastic. Depending on where I place it (in a loud kitchen or quieter pantry), I can set the alarm to a level that’s just right. The 110 dB is LOUD enough to be heard from another room, but I can tone it down if needed. It’s a huge relief to know I’ll hear it, even if I'm not in the immediate area. Clear LED Indicator: The LED indicator is a really nice touch. It lights up when the alarm is triggered, so I can easily see the status at a glance. The color changes based on the alert level, which makes it easy to understand whether the power is out or if the temperature is outside the desired range. 12-Hour Alert Function: I like that the alarm has a 12-hour timer before it resets, so it doesn’t keep ringing non-stop once an issue has been detected. This gives you a window of time to address the issue without being overwhelmed by constant noise, and the alarm automatically resets if everything is back to normal. Versatile Use: I’ve used this alarm not only for my freezer but also for my refrigerator, sump pump, and even the aquarium. It’s a versatile device that works in various situations, and it helps to monitor power loss or temperature fluctuations in different appliances. This gives me confidence that all of my sensitive equipment is being monitored effectively. Easy Setup: The setup is super simple. I just plugged it in and mounted it in a spot where I can hear it clearly. It comes with an easy-to-understand manual and instructions, making it very user-friendly. What Could Be Improved: Not Battery-Powered: One thing to note is that this alarm requires a plug-in to operate (it doesn’t run on batteries). While this isn’t a dealbreaker, it does mean that if there’s a power failure for an extended period, the alarm itself will go off, which might not be helpful if the power outage is widespread and the device itself loses power. If you’re looking for a more portable, battery-operated option, this might not be the best fit. Sensitivity Settings: While the alarm works well for both power failure and temperature changes, there isn't much adjustment for temperature sensitivity. It might be nice to have more control over the specific temperature range at which the alarm triggers (like allowing it to activate only if the freezer temperature rises above a certain threshold). In Summary: The Power Failure Alarm is a fantastic tool for anyone who wants an extra layer of protection for their appliances. It’s easy to set up, versatile, and provides reliable alerts for power loss or temperature changes. I feel much more confident knowing that my freezer, refrigerator, and other sensitive equipment are being monitored 24/7. The adjustable volume and LED indicator make it very user-friendly, and the 12-hour alert feature is a thoughtful addition. My only minor gripe is that it’s not battery-powered, so it’s not ideal in situations where power outages last longer than a few hours, but for most uses, it works great. Pros: Adjustable alarm volume (0-110 dB) Clear LED indicator for easy monitoring 12-hour alert feature prevents constant ringing Versatile for use with freezers, refrigerators, sump pumps, and aquariums Easy setup and user-friendly Cons: Requires a plug-in (no battery backup) Limited temperature sensitivity settings
L**E
User friendly and works great!
Excellent product. Allows user to set the db adjustment and cancel alarms if necessary.
J**N
Works Great — Just Not Loud Enough for Garage Use.
Great product and very easy to set up. The only downside is the alarm volume — when used in the garage, it’s not loud enough to hear inside the house (I tested it). If you’re using it indoors, though, it should work perfectly.
M**Y
Immediate alarm on power outage, choice of alarm tones and volume level.
Very effective and useful alarm. Alerts immediately when power goes off - essential if you have a generator, as we do. We need this to alert us to a switchover to the generator, so that the main house heat can be turned off, so as not to bog the generator down with too much amperage demand. The other nice things about it are the ability to modify the volume levels, so it doesn't blast your ears off (like some smoke detectors), and a choice of alert sounds. The replacement outlet on the front of it is the icing on the cake. Just plug and play.
S**T
Great product. Works as advertised
The product includes a clear green light indicator to show it is powered on. It plugs in easily and is very slim so it’s easy to use the pass through plug. The battery lasts for at least an hour. The alarm could be heard a little outside of the house, so it’s plenty loud. It’s a good buy if you have a generator and want to be woken up at night to start it.
M**E
Good quality
Works as advertised.
A**R
Great Low-Tech Solution In a High-Tech World
These are great for the key items you want to know right away if power goes out -- e.g. refrigerators, chest freezers, etc. I also recommend these for anyone running solar generators/power stations. Despite power stations being a great way to keep appliances running during a power outage, they aren't without fault. If you have a fridge or freezer plugged-in to a power station and said power stations AC outlets get switched-off (e.g. after a firmware update), these provide a simple fail-safe for critical items. I have these on the following: • Each power station's main plug to the wall. • Each appliance/device plugged-in to a power station. They work great, they're inexpensive, and if you want to know/hear when power has been cut to a specific device, these are a great option.
N**R
Works well
This device has several nice features. I like that I can choose the sound of the alarm and that the volume can be adjusted to my preferred level. All of these adjustments can be easily made. However, I do not like the turn-off button being on the side of the alarm. I have the alarm plugged in beside my bed to alert me to a power outage in the middle of the night. It is not easy to find the button to shut-down the alarm in the dark. It would have made more sense to put the shut-off button on top of the device where it could be reached quickly. Other than that issue, the device works well.
B**Z
Great item, especially when the power goes off at a critical time.
It works well. I got it because I hatch chicks in my incubator and every time there are always a power failure that happens in the critical time of incubating. And always at night when I am sleeping. Most of the time I only wake up an hour after and the temperature of the incubator has already dropped and cause many chicks to die. With this item, I have it in my bedroom and when the power goes out, I can rapidly go and engage the emergency generator. Also you can choose among different chimes and especially you can adjust the volume. This way you can adjust it loud enough to wake you up but not to jolt you out of the bed. I wish I had bought this item years ago.
A**R
When the power fails… you’ll know!
Quite loud and works perfectly. Choice of various alarm tones. A must for sump pumps.
S**9
Like the passthrough plug.
Seems OK so far - like the pass through plug.
S**K
Power failure alarm WORKS!
Definitely work! Set the one up in the living room the other downstairs for sump pump. Thought I’d choose the menacing Fire truck driver siren. Woke up one night power was down. Let’s just say I’m used to loud sirens but this had me literally jumping out of bed with the “wholly crap” words. Was able to silence them and put auxiliary power to the pump until power was back on. I’m empressed with the unit, not the FD siren ;)
R**H
Great backup for anything that could lose power
Works as suspected. I use mine in a barn and the high pitch noise can be heard from several feet away
Trustpilot
3 days ago
2 weeks ago