Sentry Behavior Portable Calming Diffuser for Dogs

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At a Glance

  • Calming
  • Made in USA
  • All Lifestages

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About This Item

Details

  • The Sentry Portable Calming Diffuser is designed to help reduce issues like barking, marking, and chewing that your dog may experience when anxious.
  • This diffuser passively releases pheromones to help reduce stress-related behavior at home or on the go.
  • The portable design requires no batteries or electricity, bringing comfort and calm to your dog wherever they need it.
  • The Sentry Portable Calming Diffuser helps manage your dog’s stress and stress-related behavior.
  • Passively releases calming pheromones for up to 30 days in any area that covers up to 700 square feet.

Ingredient Information

Balance. Support. Promote

For over a decade, Sentry has worked with leading pet experts and top universities, researching effective ways to help pets lead happier, less stressful lives.

Sentry Understands Anxious Pets

Sentry uses pheromone technology to effectively change your pet’s behavior. With the help of their products, good behavior is right around the corner.

Change the Behavior, Not the Pet

Pets can’t talk, so they show they’re scared, frustrated, or not feeling well by changing their behavior. Give them the help they need for excessive barking or meowing, jumping on guests, licking, scratching, and spraying with the Sentry line of behavior products.

About Sentry

Sentry pheromone technology helps promote balanced behavior with science-backed solutions. Help your pet stay cool, calm, and collected with Sentry Behavior.

Shop Sentry

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Questions & Answers

2 Customer Questions

Is there any kind of guarantee?

Answer by Chewy • Jun 30, 2025
This diffuser does not appear to have a standard manufacturer's guarantee. However, if you and your pet aren't 100% satisfied, just refund or replace your items for free within 365 days of purchase. No fuss, no fees, no worries. We promise to always make it right for you and your pet. If you'd like to request a refund or replacement, chat with us with your order number, or call us at 1-800-672-4399. At our discretion, a refund or replacement may be issued without requiring a return.

Is this safe to use around rabbits?

Answer by Chewy • Apr 29, 2024
The diffuser will affect other dogs/cats that are in the vicinity of the diffuser. This product will not affect other species of pets in your home (birds, ferrets, rabbits, etc.).
Reviews
Write a Review
3.0
Rated 3 out of 5 stars
43 Ratings
Terms & Conditions

28 Customer Reviews

Rated 1 out of 5 stars
By nansy on Dec 25, 2025

Weird smell

Doesn't affect my shih tzu . Separation anxiety, barks at night

Doesn't affect my shih tzu . Separation anxiety, barks at night

Rated 1 out of 5 stars
By Rhondda on Jun 19, 2025

Didn't do anything.

My pack were unaffected. No mood changes. I put it the common area with plenty of air flow.

My pack were unaffected. No mood changes. I put it the common area with plenty of air flow.

Rated 5 out of 5 stars
By Joni on Mar 26, 2025

Ease of use while traveling

I bought this for a recent road trip. It worked well to settle my dog down in new enclosed spaces. I love that it’s portable and does not require electric plugs

I bought this for a recent road trip. It worked well to settle my dog down in new enclosed spaces. I love that it’s portable and does not require electric plugs or batteries.

Rated 2 out of 5 stars
By KayLWay on Jan 28, 2025
Received Free Product

Didn’t seem to calm them in a noticeable way

I wanted this to work. It’s very chic looking and fits right into our home decor. I have two dogs, one and extra large breed and one a medium size. Both are big

I wanted this to work. It’s very chic looking and fits right into our home decor. I have two dogs, one and extra large breed and one a medium size. Both are big barkers and I hoped this would help mellow them. It did not help in this department but maybe in other areas? I did put it on the floor in the room they frequent the most.

Rated 1 out of 5 stars
By Cassie on Dec 21, 2024

Absolutely useless!

These things are in the smallest rooms of our home where the dogs spend time during the day and sleep at night. I am now finding urine from dogs of ours who NEVER

These things are in the smallest rooms of our home where the dogs spend time during the day and sleep at night. I am now finding urine from dogs of ours who NEVER urinate inside our home literally in front of these diffusers. Like it's attracting them. I'm now not only in with everything these say they'll help with, but also investing in pads or cleaning up pee nightly. Totally worthless devices. I'm extremely disappointed. Was hesitant prior but now very defeated and hoping that these haven't caused more issues.

Rated 3 out of 5 stars
By Jawjagrrl on Sep 11, 2024
Received Free Product

Comfort for your pet without the plug

Having tried pheremone diffusers for nervous cats before, we thought we'd try this plugless product for our rescue pup Kirby who deals with separation anxiety any

Having tried pheremone diffusers for nervous cats before, we thought we'd try this plugless product for our rescue pup Kirby who deals with separation anxiety any time his human Dad leaves the house, even for a short time. Best feature - no plug! This can sit on a table near your pet's favorite spot. In our case on a table near his favorite chair (as with any item, keep away from pets who will chew!). Very simple setup, just pull the back seal off the phermone packet and drop into the stand and that's it! Simple as an air freshener. The product is a bright purple color, which makes it easy to see how much has been used. Ours appears half empty after just over one week of use, which may be it's sunny location. After a week of use, Kirby is relaxed enough to nap as pictured while "Dad" gets some workshop time - and sharing his favorite chair with a cat! This may not be a total solution for a nervous pet - Kirby will still get anxious if no humans are about after a short time - but it is worth a try first if you are considering anxiety meds for your pet first. And being untethered from an outlet makes it much easier to travel, board, etc. Glad we gave it a try.

Rated 5 out of 5 stars
By Tish on Sep 11, 2024
Received Free Product

Portable & convenient calming diffuser

Tried this calming diffusers out because Nala isn’t the best car companion (she gets a little TOO excited). What I like about the diffuser is it doesn’t require

Tried this calming diffusers out because Nala isn’t the best car companion (she gets a little TOO excited). What I like about the diffuser is it doesn’t require an electrical plug, it is very light/portable and the contents don’t spill out. I placed the unit in the room we use the most so it could take effect and then when we are taking a car ride, I just bring the diffuser and pop it in the backseat. I think it has helped Nala stay a little calmer and bring a familiar smell with her from her favorite spot in the house to the car.

Rated 4 out of 5 stars
By Great for big chewers on Sep 20, 2024
Received Free Product

So far so good....

We have one diffuser in our main living area and it does seem to help a bit. I think we would need to add more to other living areas to really have full confidence

We have one diffuser in our main living area and it does seem to help a bit. I think we would need to add more to other living areas to really have full confidence in the efficacy of the diffuser. As a test we gated the first floor to keep him within the product for a longer period, and during that test his behavior appeared to improve and become more calm. The next step for us will be to get a couple more and place them on the other floors, but our small test looks positive.

Rated 3 out of 5 stars
By KSG1 on Aug 28, 2024
Received Free Product

Not sure this works for my high anxiety Pomsky.

I have to be honest, I have not seen a change in my dog. But, my dog is high anxiety, he is on Prozac and suffers from being nervous all the time. It even keeps

I have to be honest, I have not seen a change in my dog. But, my dog is high anxiety, he is on Prozac and suffers from being nervous all the time. It even keeps him from eating, so I thought this product would be great, and it might be, but my dog is not a good client for this. I can smell a faint smell when I am close to it, but it is not a very loud or a very huge carry smell. The portability of it is nice, the smell packet just slips into the plastic holder and you are on your way. I have it sitting right up against his cage. Still, no change has been detected.

Rated 3 out of 5 stars
By Caroline on Sep 11, 2024
Received Free Product

Odorless, portable, and I have happy dogs!

We have had some tension between dogs in our household previously and while having this product, everyone has been happy. I am not sure of its effectiveness or if

We have had some tension between dogs in our household previously and while having this product, everyone has been happy. I am not sure of its effectiveness or if it’s placebo, but I think continued use would give a better picture. It is odorless and it is made nicely. I like that it’s small and easy to place anywhere in the home or even car.