SKU: 2855632206

D-D Advanced ATO (Automatic Top-Up Unit)

Sale price$101.70 Regular price$113.00
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  • USA
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

D-D Advanced ATO (Automatic Top-Up Unit)The D D Advanced ATO maintains the water level in your aquarium, automatically replenishing water lost through evaporation. Its main optical sensor has three detection points allowing the unit to not only control the water level at a set point but also to recognise if the water level is below or above normal, triggering an audio and visual alarm. In addition to the main optical sensor a failsafe Anti Overflow float sensor is included that will shut

The D-D Advanced ATO maintains the water level in your aquarium, automatically replenishing water lost through evaporation. Its main optical sensor has three detection points allowing the unit to not only control the water level at a set point but also to recognise if the water level is below or above normal, triggering an audio and visual alarm. In addition to the main optical sensor a failsafe ‘Anti Overflow’ float sensor is included that will shut down the ATO function and set off an alert when triggered.

An included auxiliary leak detector sensor can also be connected to the ATO and placed next to the sump or the aquarium alerting if any water is detected as a result of a leak or water spillage.

  • Smart ATO low voltage controller

  • Optical sensor with 3 detection points

  • Backup emergency overfill float sensor

  • General flood detection sensor

  • Audible and visual alarms

  • 4 status LEDs  High / low / overfill and flood alarms

  • ATO pump with low-level shutoff/alarm

  • Automatic shutoff in all alarm states

  • Emergency time-out function / alarm

  • Magnetic sensor mounts

  • Secure refill tube holder

Specifications

  • Controller dimensions 90 x 90 x 22mm

  • DC pump maximum flow rate 270 l/h

  • DC pump maximum head 200cm

  • Tube size 8mm x 11mm

  • Tube length 2m

  • Maximum glass thickness for magnet holders 10mm

  • Maximum glass thickness for tube holder 15mm

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 2855632206

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4.5 ★★★★★
Based on 9 reviews
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Mrs. Lynda A. M. Brown
Lexington, US
★★★★★ 5
Wonderful face cleanser
Style: Tolerance Daily Foaming Facial Cleanser
The best product I have found for cleansing my make up off. I have rosacea and I find this to be so gentle on my face.
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Reviewed in the United States on May 27, 2026
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Mimi D.
Chelsea, US
★★★★★ 5
A foaming cleanser that doesn't dry out my skin!
Style: Tolerance Daily Foaming Facial Cleanser
I have very dry, reactive skin and initially looked past this face wash because it is foaming which is usually a no-go for my skin. I am pleasantly surprised with how well my skin tolerated this product. No dryness or irritation and my face felt clean. I also love that it is fragrance free because fragrances seem to really irritate my skin and who needs to smell their face wash? I am happy to say this is another great product from Avene!
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Reviewed in the United States on April 2, 2026
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Niki Picks
Chelsea, US
★★★★★ 5
Gentle cleanser for dry and sensitive skin.
Style: Tolerance Daily Foaming Facial Cleanser, Style: Tolerance Daily Foaming Facial Cleanser
I have dry and sensitive skin, and this cleanser has worked very well for me. It is very gentle on the skin and has not caused any irritation. The texture is light and foamy, it spreads easily across the face and rinses off without leaving any residue. After using it, my skin feels clean, soft, and comfortable, without any tightness. The size is quite large, which I find great because it lasts a long time with daily use. Overall, a simple but very pleasant cleanser for sensitive skin.
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Reviewed in the United States on April 13, 2026
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Verified Purchase
EMILEE LASOSKI
Houston, US
★★★★★ 5
Gentle Yet Effective—Perfect for Redness and Sensitive Skin
I’ve been really impressed with this Anua Azelaic Acid serum—it’s one of those products that feels gentle but still delivers noticeable results. The formula is lightweight and absorbs quickly, leaving no sticky or heavy feeling behind, which makes it easy to layer with the rest of my skincare. What stands out most is how soothing it is. The 10% azelaic acid helps calm redness and irritation while still being mild enough for sensitive skin. Combined with multiple types of hyaluronic acid, it keeps my skin hydrated and balanced instead of dry or tight.  Over time, I noticed my skin tone looking more even and less inflamed, especially in areas prone to breakouts or redness. It’s a great option if you want something that targets multiple concerns—like texture, redness, and hydration—without being too harsh. Overall, this is a fantastic serum for anyone dealing with sensitive or reactive skin. It’s effective, easy to use, and feels like a high-quality addition to a daily routine. I’ll definitely keep repurchasing.
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Reviewed in the United States on March 25, 2026
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Verified Purchase
Vanessa
Battle Creek, US
★★★★★ 5
Totally worth it!!
So I have combination skin with a tendency toward closed comedones and I decided to try this product because I heard that azelaic acid helps with closed comedones. Honestly, I didn’t have very high expectations because my closed comedones have been very stubborn. I was already using the COSRX BHA before introducing this product, but it worked very slowly, so I wasn’t really getting the results I wanted from that product alone. Let me tell you that once I introduced this product, I finally started seeing the results I was looking for. I have noticed that my closed comedones have been resolving way faster than when I was only using the BHA and my skin also feels softer and overall looks healthier. I also want to mention that even though I don’t get inflamed breakouts very often, when I do get one, I feel like this product helps it calm down and go away much faster. I did start incorporating it slowly, and I highly recommend that anyone who wants to start using this product do the same and not rush into using it every day right away. Despite that, I personally haven’t had any issues with irritation at all and I actually find it very soothing, but you always need to be careful when adding new actives to your routine. I am currently using this product 4-5 days a week, once a day, and on the days I do not use it, I use my BHA instead. I also find that this product lasts a long time, since you only need like five drops for the entire face and the consistency is very watery. I’ve been using it for around two months, and there is still plenty left. Overall, I really recommend this product because it has helped me a lot, and while I am not sure if this alone would be enough to treat closed comedones, I would definitely say it is a great complement to other treatments.
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Reviewed in the United States on January 27, 2026

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