CYBEX Eternis S Convertible Car Seat with Sensorsafe - Lavastone Black

CYBEX Eternis S Convertible Car Seat with Sensorsafe - Lavastone Black

SKU: 4058511378701
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CYBEX Eternis S convertible Car Seat with Sensorsafe - Lavastone Black

Eternis S All-In-One Car Seat

Protection that Grows

The CYBEX Eternis S All-In-One Car Seat offers 10 years of use in one easy-to-use package – making it the only car seat your child will need, from birth and beyond.

Sensorsafe is an important safety technology integrated in the chest clip of the car seat that alerts when unsafe situations arise. The alerts are provided through a vehicle receiver and the caregiver’s smartphone.

The Eternis S with SensorSafe alerts when the driver accidentally leaves the child behind secured in the car seat, a child unbuckles their chest clip while the vehicle is in motion, the back seat has become too warm or too cold and when a child has been seated for too long —all through a user-friendly app that also provides guidance on installation and other useful information.

Suitable from 4 lbs. up to 120 lbs., the Eternis S offers 3 stages of protection – as a rear-facing infant seat up to 50 lbs., a forward facing convertible seat and then as a belt-positioning booster that lasts through your child’s first 10 years of age.

The Eternis S offers an adjustable Linear Side-impact Protection (L.S.P. System), which absorbs up to 25% more impact forces in the event of a side impact collision.

Additionally, a patented 3-position reclining headrest, which helps prevent the child's head from falling forward while asleep, guiding the head and neck into a safe position.

These features, combined with a steel reinforced frame for strength and durability provide advanced child safety protection and peace of mind.

  • Protection that grows with your child – use Rear-facing from 4 lbs. to 50 lbs. Forward-facing from 22 lbs. to 65 lbs. and as a Belt-positioning Booster from 40 lbs. to 120 lbs.
  • In-seat recline allows your child to safely ride rear-facing for longer
  • Linear Side Impact Protection System helps absorb up to 25% more impact forces*
  • Patented headrest recline helps prevent sleepy heads from falling forward outside of the headrest safety zone
  • 12-position adjustable headrest with integrated no-rethread harness


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