SKU: 33821626660
cybex sirona ece r44/04 semi universal

cybex sirona ece r44/04 semi universal CYBEX Sirona M SensorSafe 2.0 Convertible Car Seat

Sale price$24.49 Regular price$27.21
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Description

cybex sirona ece r44/04 semi universal 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: 33821626660

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4.5 ★★★★★
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Product Reviews
C
Verified Purchase
Charles Schultz
Battle Creek, US
★★★★★ 5
Bad Product
Size: 20oz
There was no pressure in the can. It would not even inflate a bicycle tire. Be careful there is no amazon refund or return with this item!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
U
Verified Purchase
Unknown1
Boise, US
★★★★★ 5
Good option
Size: 16oz
Fixed multiple car tires
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
C
Verified Purchase
Charlie "Chuck" Brown
Grantham, US
★★★★★ 4
IT WORKS, IT REALLY WORKS!
Size: 16oz, Size: 16oz
I carry a tire plug kit in my van. Low pressure light came on and quickly made my way to air pump. Checked out tire and was at least a 5/16" bolt right between tread, very easy to locate (hissing). Inflated tire, prepared plug, pulled out bolt, inserted plug done. Almost home light came on again. Used water soap and plug was still leaking. Tried double plug and still leaking, but would take days to trigger low pressure light. Tire still had decent tread and didn't have facilities to patch, so got a can of fix a flat. I have never believed in this stuff, but it worked. No low pressure warnings for about a month. Around here they would charge $50 for a patch, 2 .25 cent soft rubber plugs and fix a flat, problem resolved!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 25, 2025
M
Verified Purchase
Markus
Dallas, US
★★★★★ 5
Buy it! Lifesaver!
Size: 16oz
Yes, buy it when you don't have a spare tire because you will need it! I live in Florida and flat tires are just part of living here! Saved my life twice already and is absolutely self explaining! Cheaper then a spare tire, lighter than one too! Just throw it in your trunk and best case you will never need it but just in case!
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Reviewed in the United States on May 23, 2026
E
Verified Purchase
E. A. Jacques
Massapequa, US
★★★★★ 1
Difficult to use and eventually hose end broke
Size: 24oz, Size: 24oz
I purchased this can of Fix-A-Flat to fix, what I believe, is a rim leak on my truck tire which needs to be filled once every week or so. When I attempted to use the product I let some air out of the tire (down to 25 psi) so it would be easier to dispense the contents. The instructions on the can say to have the valve on the tire at the 6 o'clock...which I did as well. When I attempted to make the connection using the swivel connector on the can's hose it was difficult. The hose on the can is very short and stiff and because it came coiled in the can's lid, did not want to straighten out making connecting it to the tire a very awkward process. It was hard to screw the hose end on the valve without it binding so it felt like it was cross-threading. I have machined aluminum valve caps and they go one very easily so I know the threads on the tire's valve stem are clean. I finally did get it on and when I attempted to dispense the contents it filled the hose but that was about it. I could not see any contents flowing thru the hose at all. I assumed it was not on far enough so I took it off to try again and the contents sprayed everywhere showing it was indeed under pressure....just not going into the tire. After multiple tries the hose end eventually just broke off and stayed on the tire's valve stem. I was able to get it off, but at this point the can is useless to me. Obviously I cannot and will not recommend this product. I have used this product before and had success, but that was when the hose was longer and wired to the side of the can making it much easier to use, versus how they are shipped now. I would recommend going with another product or possible going to a box store (which is what I plan to do) to find one that does not have this design. At the very least, if you do choose to disregard this review, I would try it with the tire's valve stem at the 3 or 9 o'clock position which might make it easier to thread the hose end on to the valve stem,. Also, if you choose to go this route you might just be throwing your money away. I attempted to get a refund from Amazon and was directed to the manufacture's web site. From there you are directed to use the 800 number of leave a general message that is in no way connected to your Amazon purchase. Past experience tells me it will not be an easy process so it looks like I am out the $12.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2024

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