SKU: 55800641440
cybex sirona m car seat

cybex sirona m car seat CYBEX Sirona M SensorSafe 2.0 Convertible Car Seat

Sale price$24.17 Regular price$26.85
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Description

cybex sirona m car seat CYBEX Sirona M SensorSafe 2.0 Convertible Car SeatDiscover advanced child safety and parental peace of mind with the Cybex Sirona M SensorSafe 2. 0 Convertible Car Seat. As part of the CYBEX Gold Car Seat line, this versatile seat combines ease of use with cutting edge safety features, designed to protect your child from their first ride and through every stage. The standout SensorSafe technology, embedded directly in the chest clip, instantly alerts caregivers of potentially unsafe situations,

Discover advanced child safety and parental peace of mind with the Cybex Sirona M SensorSafe 2.0 Convertible Car Seat. As part of the CYBEX Gold Car Seat line, this versatile seat combines ease of use with cutting-edge safety features, designed to protect your child from their first ride and through every stage. The standout SensorSafe technology, embedded directly in the chest clip, instantly alerts caregivers of potentially unsafe situations, offering crucial awareness while on the road.

Engineered for versatility, the Cybex Sirona M SensorSafe 2.0 can be used rear-facing for infants and toddlers up to 40 lbs. and forward-facing up to 65 lbs. Its adjustable Linear Side-Impact Protection (L.S.P.) System, designed to absorb side-impact forces, along with a 12-position headrest, grows with your child to provide tailored protection and comfort. The ergonomic design and one-pull LATCH removal system make installation easy, while features like magnetic belt holders and a recline function ensure a smooth, hassle-free experience for parents.

What Is SensorSafe?

The SensorSafe 2.0 chest clip monitors your child’s well-being, sending timely alerts directly to the caregiver’s smartphone if unsafe conditions arise. Originally developed to reduce incidents of children left unattended in vehicles, SensorSafe notifies caregivers if the car is switched off with a child still buckled, if the child unbuckles themselves mid-drive, if the back seat temperature reaches an uncomfortable level, or if a break is needed due to extended seating time. The alert system extends to emergency contacts with GPS coordinates if necessary, ensuring a continuous line of protection.

Cybex Sirona M SensorSafe 2.0 Convertible Car Seat Features

  • 5-Point Safety Harness with SensorSafe 2.0 Technology integrated into the chest clip
  • Adjustable Linear Side-Impact Protection (L.S.P.) System reduces side-impact forces by up to 25%
  • 12-Position, Height-Adjustable Headrest with integrated no-rethread harness for easy, precise adjustments
  • 10-Position Recline for a tailored fit to your car’s back seat
  • Dual-level Indicators and Magnetic Belt Holders for convenient, correct installation every time
  • Removable Newborn Insert for optimal support from 5 lbs. up to 11 lbs.
  • One-Pull LATCH Removal System for effortless disconnection when needed
  • Dishwasher-Safe Cup Holder that attaches on either side of the seat for easy access
  • Dual Belt Adjusters to secure a tight, safe fit every time

Cybex Sirona M SensorSafe 2.0 Convertible Car Seat Weight and Height Limits: How Long Can You Use Cybex Sirona?

The Sirona M SensorSafe 2.0 can be used for extended rear-facing from 5-40 lbs., and as a forward-facing car seat from 22-65 lbs., providing safety and comfort through every stage of your child’s growth.

Cybex Sirona M SensorSafe 2.0 Convertible Car Seat Manual and Instructions for Installation

Installing the Sirona M SensorSafe 2.0 is easy, with options for either the LATCH system or vehicle seatbelt. The one-pull LATCH removal and dual belt adjusters make it straightforward to achieve a secure fit, and the SensorSafe app provides guidance, FAQs, and instructional videos to support safe use every step of the way.

Cybex Sirona M SensorSafe 2.0 Convertible Car Seat Reviews: What Parents Are Saying

Parents consistently praise the Sirona M SensorSafe 2.0 for its innovative safety technology, ease of use, and comfort. The SensorSafe feature offers immense reassurance, allowing caregivers to focus on driving while knowing they’ll be alerted if any issues arise in the back seat. Many reviewers find the adjustable L.S.P. system and headrest beneficial, noting how these features adapt to growing children and provide increased security in side-impact scenarios. Parents also appreciate the hassle-free installation, magnetic belt holders, and the thoughtful design details that make buckling up smooth and fast.

In addition, the 10-position recline and cozy seat padding have received positive feedback, with many parents noting how comfortable their child is on both short rides and long road trips. Overall, the Sirona M SensorSafe 2.0 has become a top choice among safety-conscious caregivers looking for a reliable, high-quality convertible car seat.

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SKU: 55800641440

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4.5 ★★★★★
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don
Waukegan, US
★★★★★ 5
Works well!
Style: 16 oz
This stuff works well. I've only ever used it after my tires had been punctured and ran flat... I haven't had a flat this wouldn't seal... 3 uses so far all 3 have fixed flats and been many miles put on since the repairs. I start with as little as possible and if it doesn't seal I just add more, I think I've managed to use far less than recommended and successfully sealed punctures. I've only used it on fat tire e-bike tires. I'm pretty comfortable with the seal and I have no plans to replace the tubes, which saves me a fair amount of trouble. I will update if it springs any leaks without new punctures. It's very easy to use and actually pretty clean especially compared to automotive type tire repair foams. The first repair I used it for was a brand new bike that just wouldn't hold air in the rear, totally unsure what caused it to keep losing air but 2 or 3 small doses of slime fixed it. The most recent slime repair, I had a wobbly bike ride which felt weird and I couldn't figure out why but a few hours after I had returned home both tires were totally flat. They both had a handful or more of some really heavy duty thorns stuck in the tire that likely barely punctured the tubes but the rear tire also had a roofing nail in it. I did not think the slime was going to fill that one, it was a pretty heavy leak once I removed the nail, but Slime did seal it and I've since ridden the bike twice and in the same rough conditions I normally would still holding strong at higher pressure than I normally ride, have yet to drop back down since refilling but I am hoping and expecting it won't be a problem. Two thumbs up. I always keep a small tube in my bike bag and I am confident if I ever need it while I'm out and about it will be useful.
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Reviewed in the United States on May 17, 2026
A
Verified Purchase
Artie
Charlottesville, US
★★★★★ 5
Who can live without slime great stuff and a good price. 👍
Style: 32 oz
If anyone has an outdoor anything that takes air. You should never be caught without this stuff. It seals your tires on almost anything and it lasts longer than you would expect. It’s easy to use and easy to clean up after using it. It will work well for anything that is supposed to hold air. Great product.
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Reviewed in the United States on April 11, 2026
M
Verified Purchase
Mudd
Natrona Heights, US
★★★★★ 5
Title: Reliable, Easy-to-Use, and Worth Every Penny
Style: 32 oz
I’ve been using Slime tire sealant for my fat tire e-bike, and I can say with confidence that this product delivers exactly what it promises. The application is simple, the results are consistent, and the peace of mind it provides is invaluable. For anyone who rides regularly — whether for commuting, recreation, or deliveries — this is a product that pays for itself many times over. The first thing I appreciate about Slime is how easy it is to install. The bottle is well-designed, the instructions are clear, and the process takes just a few minutes. You simply deflate the tire, remove the valve core, squeeze in the recommended amount, reinstall the valve core, inflate, and spin the wheel to distribute the sealant evenly. No special tools, no mess, and no guesswork — just a straightforward, user-friendly process. Performance-wise, Slime does exactly what it’s supposed to do: seal punctures quickly and effectively. I’ve had nails, thorns, and sharp debris puncture my tires while riding, and in every case where the leak was within the tread area, Slime sealed it instantly. There’s something incredibly reassuring about hearing that faint hiss of air for a second, then watching it stop as the sealant does its job. It’s a real-time reminder that this product is actively protecting you from being stranded. What sets Slime apart from other sealants I’ve tried is its durability. Once applied, it stays active inside the tube for months, ready to respond to new punctures as they happen. It doesn’t dry out quickly, it doesn’t clump up, and it doesn’t cause balance issues with the tires. For someone who rides almost daily, that reliability is a huge plus. Another thing I respect about this product is that it’s non-toxic and environmentally friendly. If a bit of sealant escapes during a repair, I don’t have to worry about it harming the environment. It’s also water-soluble, making cleanup easy if I ever need to replace a tube or tire. That attention to safety and sustainability shows that the company isn’t just making a great product — they’re doing it responsibly. The value for the price is excellent. One bottle goes a long way, and when you factor in the cost of replacing tubes, paying for roadside repairs, or even the inconvenience of being late because of a flat, Slime is an investment in both savings and peace of mind. For delivery riders like me, it’s especially valuable — every flat avoided means another day of work uninterrupted. In short, Slime is one of those rare products that I can recommend without hesitation. It’s easy to use, effective, long-lasting, and backed by a company that clearly understands the needs of cyclists and e-bike riders. It has already saved me from countless headaches, and I plan to keep a bottle on hand at all times. If you ride regularly and haven’t tried it yet, you’re taking an unnecessary risk — this is one of the best preventative tools you can add to your maintenance kit. Verdict: Five stars for performance, ease of use, and overall value. Slime is a must-have for any serious rider who values reliability and wants to keep rolling no matter what’s on the road.
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Reviewed in the United States on August 11, 2025
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Verified Purchase
Dina Stewart
Dallas, US
★★★★★ 4
Slime is good, pump is a disaster
Style: 1 gal, Style: 1 gal
The only reason I am giving this a 4 star(not zero) rating is the slime itself. The actual pump on the 1 gallon canister is awful. It makes so much mess, so I do not know whether I pumped the slime into the tubes or it all just spilled out of the base of the pump. The bottles worked great, but this time I needed to use more slime for a bunch of tires. What a slimy mess that was. Very poor pump design. Only after I spilled who knows how much of the slime, I finally washed it and was able to see the problem. The cap at the base of the pump got unscrewed and let all the slime lose. I screwed it back up and this should fix the mess next time I use it. Just a heads if someone encounters the same issue.
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Reviewed in the United States on April 22, 2026
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Verified Purchase
Scott A. Cain
Draper, US
★★★★★ 5
Great product
Style: 16 oz
Worked as advertised. I would order again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026

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