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White Lento on hand


Lento 10 is the same playful and wild, yet technically upgraded Lento smoke alarm with no battery changes ever needed. The non-replaceable 10-year Lithium battery runs for the whole lifetime of 10 years, so you and your loved ones can sleep safely. Lento 10 is available in five different colors. The figurative and playful design is perfect for children’s room or as a spicy detail for home interior.

10 year Lithium battery installed

Fast installation with 3M double sided tape

Includes also mounting screws

Automatic power activation upon installation

Entire surface functions as a test button.

Tested and certified in EU

5 year guarantee

Note: Lento 10 may not be installed on to the old Lento mounting plate

Smoke alarm Jalo Helsinki fire safety
10 year smoke alarm no battery changes ever
black 10 smoke alarm Jalo Helsinki fire safety
10 year lento Smoke alarm Jalo Helsinki fire safety
light green smoke alarm Jalo Helsinki fire safety


The Lento smoke alarm is rugged, playful and wild as it's creator. Lento embodies the change Jalo want's to bring to smoke alarms.

5 years lithium batteries included and 5 years warranty.

Fast installation with an 3M adhesive tape.

Includes the mounting screws.

The entire surface functions as a test button.

CE & LPCB certified by BRE

Lento Green top smoke alarm
White lento fire alarm top
Pink lento fire alarm top
Grey lento fire alarm top
Black lento fire alarm top



Lento by Paola Suhonen is a battery powered smoke alarm intended for domestic use. Contrary to the other smoke alarms the entire front surface functions as a test button. An additional 3M adhesive tape is provided for easy and fast installation. Fast installation will take approximately 30 seconds.

Lento Smoke alarm utilises photoelectric detection technology to sense smoke from different types of fires. Unit’s photoelectric (optical) detection method works by sensing infrared rays scattered by visible smoke particles. The smoke alarm is equipped with a self diagnostic and checking feature to ensure correct operation through its service life. The device operates so that when the smoke is present, device will release a loud and continuous warning siren to alert residents.
Jalo Helsinki Smoke alarms are tested and certified by BRE UK.


Lento black smoke alarm perspective
Lento Pink on hand
Lento green smoke alarm perspective
Lento black smoke alarm ceiling
Lento pink smoke alarm installation