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Best pool alarms 2021

Best pool alarms 2021
(Image credit: Getty)

With the best pool alarms, you can feel safer as you relax in your own backyard. Designed to prevent accidents and deter intruders, installing one of these alarms for your pool comes with a built-in sense of security. There’s also plenty of choice with both above-ground and in-ground alarms, so no matter which type you opt for, you can stay safe. 

In some cases, you may be required to install one of the best pool alarms due to state legislation. Even if this isn’t the case for you, it’s certainly a good idea to consider one, just so that you can feel reassured that any intruders can’t gain access to your swimming pool. In the unfortunate case that this does happen, you can be sure your pool alarm will alert you to the situation. 

In terms of logistics, the best pool alarms operate by sounding a loud alarm whenever water levels rise up, signaling someone or something entering the water. You can either attach your alarm to the side of your pool or allow it to float in the water, dependent on design. Obviously, audio is key to the success of the alarm, with these devices being built with loud enough volumes to hear it wherever you are around your home.

If you’re specifically looking for a way to ensure your child’s safety, there are a selection of the best pool alarms that can be worn as a bracelet and will alert you if they get wet. Thankfully, you can turn these wearable alarms off so that when you’re watching them you won’t have to worry about the alarm loudly sounding. 

For more devices to assist you with pool care and maintenance, check out our guides to the best pool heaters and the best pool cleaners

1. Poolguard Safety Buoy: Best pool alarm overall

Best pool alarms: PoolGuard PGRM-SB Safety Buoy pool alarm

(Image credit: Future)

The Safety Buoy lives up to its name

Alarm strength: 97.9dB
Remote range: 200ft
Installation: Floating
Max. pool size: 18 x 36 ft
Alarm turn-off: Key
Reasons to buy
+Reasonably priced+Works on pools up to 18 x 36 feet+Fun and easy-to-see design
Reasons to avoid
-Quietest alarm we tested-Earned a B- for object detection-Key needed to turn off the alarm

The Safety Buoy lives up to its name – it floats on the surface of the water and sounds an alarm when the water is disturbed. It’s shaped like a traffic cone too, which to us screams safety. You can attach it to the side of your pool with a string if you don’t want it floating out of reach.

In our tests, the Safety Buoy received a B- for object detection because while it picked up the sweatshirt we threw into the pool and a human getting into the water, it didn’t register any of the golf balls we tossed in.

Turning the alarm off once it sounds is a little more complicated than simply pressing a button. You have to touch the side of the buoy with the included magnetic key and hold it there for two or three seconds before the alarm will stop beeping. It put out 97.7 decibels of sound in our tests, making it the quietest alarm we reviewed. That being said, it’s still incredibly loud.

The buoy requires a 9-volt battery, which is easy to install and is supposed to last roughly one year, depending on how often the alarm sounds. This pool alarm is lightweight, fairly easy to assemble and use, and comes at a reasonable price to top it off.

2. Safety Turtle 2.0: Best pool alarm for kids

(Image credit: Future)

A pool alarm you wear as a bracelet

Alarm strength: 98.7dB
Remote range: 200ft
Installation: Wearable
Max. pool size: Unlimited
Alarm turn-off: Button
Reasons to buy
+Is very accurate+Has three to five years of battery life+Works in any body of water
Reasons to avoid
-Older children could remove it-Not a security measure-Expensive

This pool alarm is unique because rather than installing it or floating it on the surface of your pool, you wear it as a bracelet. The alarm is an adorable, little, green turtle bracelet, so it’s perfect for young children or even pets, as it’s easy to affix to a dog collar. 

When submerged, the bracelet sends a signal to a remote receiver you can install up to 200 feet away from the pool, and the alarm sounds instantly. The bracelet requires a plastic key to take it off, so there’s no way a pet or kid can remove it and slip into the water unnoticed. It doesn’t keep intruders out of your pool, but the Safety Turtle is great if you’re mainly worried about pool safety.

It earned an A+ in our object detection test because it went off every single time we submerged the device, but never when we flicked a few drops of water at it. If your kiddo likes to wash their hands up to their elbows, you might experience the occasional false alarm though. 

The receiver puts out 98.7 decibels of sound, and while that makes it the second-quietest pool alarm we tested, it’s still incredibly loud. For comparison, that’s about 10 decibels short of a rock band in concert.

The alarm on/off button on the receiver is also easy to use so you won’t be deafened by the sound of the alarm. The Safety Turtle is elegant in its simplicity and a great way to make sure your kids and pets are safe around the pool this summer.

3. Pool Patrol PA-30: Best pool alarm for large pools

(Image credit: Future)

A well-designed pool alarm offering good object detection

Alarm strength: 100.4dB
Remote range: 200ft
Installation: Floating
Max. pool size: 20 x 40ft
Alarm turn-off: Spinning wheel
Reasons to buy
+Earned an A+ in our wind and object detection tests
Reasons to avoid

The Pool Patrol PA-30 is very well designed, making it easy to change the alarm sensitivity. While some in-ground pool alarms require you install an extra plastic plate if you hear too many false alarms, the Pool Patrol PA-30 has a base you simply rotate to the left or to the right.

This rotating base is also used to turn the alarm off when it sounds, which is quicker and easier than using an alarm that requires a key. The Pool Patrol PA-30 floats on the surface of the water, and it uses one 9-volt battery, which is easy to install under the rotating base.

Along with being very well designed, this alarm earned an A+ in our wind simulation tests and our object detection tests. It also works in pools up to 20 x 40 feet, the largest pool size of the alarms we tested.

4. SmartPool PE23 PoolEye AG/IG: Loudest pool alarm

(Image credit: Future)

The best pool alarm for sheer volume when you need it

Alarm strength: 101.6dB
Remote range: 100ft
Installation: In-ground
Max. pool size: 18 x 36ft
Alarm turn-off: Key and button
Reasons to buy
+Loudest pool alarm we tested
Reasons to avoid
-Limited receiver range

You’ll know if the SmartPool PE23 PoolEye AG/IG pool alarm goes off – registering at 101.6 decibels in our tests, it's louder than a garbage disposal, a blender or a diesel truck passing you a mere 50 feet away.

While the unit is cumbersome to put together, you shouldn’t have to do it very often because the batteries are slated to last one year before you have to change them. Since it’s a submerged pool alarm, it works best on in-ground pools, as you need to install it on a level surface with the neck submerged under water.

It works by detecting changes in water pressure and then sounding the alarm – loudly – when someone or something gets into your pool. This alarm works in pools up to 18 x 36 feet, and with its loud alarm, you can be sure your family is safe.

Do I need a pool alarm?

Some US states require certain kinds of pool alarms, but regardless of where you live, having an alarm can protect you from lawsuits. Even if you’re in a safe neighborhood and don’t have any young children yourself, there’s always the possibility of someone else’s children getting into your pool without you knowing. 

An alarm can stop that from happening and stop any accidents before they start. Some states or municipalities have laws and regulations stipulating what kind of pool alarm homeowners must have. 

California, for instance, requires new residential pools to have two drowning prevention features, like a gate lock and a pool alarm.

How much do the best pool alarms cost?

A pool alarm is a great way to keep your family safe, but it can be quite costly. The eight pool alarms we tested cost an average of $183. 

All but one of the devices we used cost more than $100, but you can expect each to have about one year of battery life. 

But if you’re concerned about a young member of your family falling in the pool or keeping intruders out of your backyard, an alarm is definitely worth the investment.

Anna Burleson

Anna Burleson hails from South Dakota and worked as a writer and reviewer for a number of sites, including TopTenReviews.