Hendun Power Failure Alarm ,Gfci Circuit Failed Dector Alerter

I find AC power is going down more often than it used to, partly because it is California and they have some protection built in such that if a power line gets hit by a branch or even animal it could cause it to shut down power to prevent triggering a wildfire. It usually stays down for at least 2 + hour, sometimes more. Several times I've been on the very of having a whole refrigerator and freezer's worth of food spoiling so I ended up getting a 2 Kwh power station solely for my frig/freezer. Already had to use it twice in the last few months. During the day it is easy to know obviously when power goes down and I just go down and plug my frig into the power station. This little gem provides the protection if power ever goes down in the middle of the night while I am sleeping. It is nice & loud and would easily wake me up from even the deepest slumber. Well worth the investment and I highly recommend it. Only one con I would note. I'm not sure this would be loud enough if for example you are monitoring an outlet or device on the other side of the house or something. For me I just plug it into an outlet right in my bedroom because when I have a power issue the entire home is always affected. Suggest an enhancement where the main device can communicate with a wireless receiver and sound the alarm in the bedroom even if the monitoring device itself is on the other side of the house. Nevertheless this product is easily worth 5 stars. Update: on 6/8 AC power went down about 10:30pm when I was sleeping. This product indeed did its job well and woke me up from a deep sleep. Power was down until almost 4:30am and then was barely up for like an hour and went down again for another hour and a half. There is 100% chance my entire freezer and frig would have been full of spoiled food had it not been for this great product. Wish I could give this 10 stars!!

Everything it promised, and louder! Very easy install, and now I won’t be the last one to know my freezer lost power.

This alarm appears to be well made. I bought 3 and each one worked as designed once I installed batteries. The alarm is pretty loud. About as loud as you could expect from a 1-inch diameter speaker. I like that there are 6 different tones to choose from although I prefer the default sound. There's 3 volume levels plus mute. As soon as you plug it in it makes a sound and a greed light comes on to show you there's power in the circuit. When the power goes out it really lets you know. You can mute it manually or when the power is restored it resets itself. Very nice. I also like that it can take rechargeable AAA batteries and it has a built in charger. I'm using standard alkaline AAA's now. I recommend this alarm for anyone looking to monitor power to anything plugged into a GFI outlet.

I purchased this to notify us if the power is ever disrupted to our water purifier. The purifier is plugged into a GFCI circuit. We've never had any issue with the GFCI tripping but wanted this alarm "just in case" as we'd not know that it's not powered. About one day after plugging the alarm into the same outlet as the purifier it has tripped the GFCI multiple times, with nothing more than a VERY faint beeping -- which couldn't be heard unless we actually open the doors to the storage room where the purifier is located. Each time it tripped the circuit we reset the GFCI, and sometimes within hours the circuit would trip again. I had great hopes that this product would notify us of any outage -- but it seems to be CAUSING outages in our situation. I might add that our home is new construction with all new circuitry, and we've never had any problems before this. Sadly, I can not recommend this product. 05/2024 -- I want to update my review. Even though I'm disappointed that this alarm isn't working in our situation, I want to commend their customer service for dealing with the situation. Our home is brand new construction, with 'smart/self-testing' circuitry. So I don't understand why our situation is unique. However, their customer service has been great.

So far seems to work like it should. It has various sound levels and tones, so you should find something you like and the level you want. I put the batteries in it, plugged it in on a socket. I unplugged it and the alarm went off. Only time will tell on how well it works in real life.

We bought this for our freezer in the basement as the GFCI trips frequently. It happened again and I couldn’t even hear it until I was downstairs for something else. At the highest volume it’s still not effective unless the plug you are using is in the same room as you are.

This device has saved us money. We purchased this after a breaker tripped in our garage, where we have a fridge/freezer and deep freezer. We didn't notice the tripped breaker until a few days had past since we don't go out there often. I lost all of the food in the fridge and freezer. This device is perfect for alerting us to any tripped breakers or power outages. It has worked as described several times when the power was out. It is loud enough to hear through our door and walls if we are inside the house and in a room that is next to the garage. We can't hear it in the back of the house, so if it goes off while we are asleep, we won't know until we get up the next morning, but that's OK. Even if we don't hear it until the morning, the food will still be OK. It runs off of a rechargeable battery that charges itself when plugged in. I can't recommend this enough for anyone that has appliances that may trip a breaker but not get noticed immediately.

We are renting a home built in the 1970s. The standard for ground fault circuits in this area at that time was to have a single GF circuit in the garage that handled all the outlets that were near water sources: kitchen, bathrooms, etc. I recently purchased a chest freezer and put it in the garage. If the circuit gets tripped in the kitchen or bath (e.g., toaster, oven, hair dryer) there was no way for us to know that the freezer was without power. The alarm is very loud and there is no way anyone would be able to sleep through it; never mind miss it if awake in a 2,500 square-foot ranch house. 😃 Would recommend.

These work great. We bought a second one after trying out the first, and they've already saved a fridge and freezer full of food. The alarm is nice and loud (you can choose among several and adjust the volume), and has always worked as expected, both in testing and in an actual power failure. The icing on the cake: if you use rechargeable AAA batteries, the unit charges them itself. Any modern device like this should do this, using consumer-replaceable rechargeable batteries, but before purchasing this one we were using an older unit that didn't. We're using these alarms on two GFCI outlets, one with a fridge/freezer combo and one with a chest freezer. GFCI outlets are notoriously troublesome, and before we put alarms on ours, we lost a chest freezer full of food without being able to repeat the issue or find the cause of the tripping. These alarms are the answer.

Very good .useful

Compré este producto porque necesitaba una alarma que me avisara si se cortaba el suministro eléctrico. Mi casa cuenta con un sistema de energía solar y una batería de respaldo. Por la noche, cuando no hay sol y se produce un corte de luz, dependo de la batería de respaldo para abastecer a la mayor parte de la casa, incluido el aire acondicionado. El uso del aire acondicionado durante un corte de luz agota la batería de respaldo mucho más rápido. Esta alarma me avisa cuando se interrumpe el suministro de la red eléctrica, lo que me permite ahorrar energía de la batería —si es necesario— apagando el aire acondicionado. Publico fotos del manual de instrucciones por si otras personas necesitan más detalles sobre su funcionamiento y características. La descripción en Amazon está incompleta. Intenté hacer una pregunta, pero nadie respondió; así que decidí arriesgarme y comprarlo. Hasta ahora, estoy satisfecho con la compra. Me gusta especialmente que incluya baterías recargables de NiMH, lo que significa que no tendré que cambiarlas con frecuencia. Si necesitara cambiarlas, puedo conseguir fácilmente baterías de tipo AAA (recargables o normales). Me habría gustado que hubiera más opciones de tonos de alarma; afortunadamente, encontré uno que me gustó. Los demás suenan como videojuegos, lo cual me parece bastante infantil.

Fácil de instalar y usar bien volumen y varias opciones de alarma.

El material es muy resistente y tiene un excelente volumen