Smoke detection & warning sound via a powerful siren. Automatic transmission of an alert to the user via SMS, email or vocal message, thanks to the connection to the In Two Box. Anti-insect grid avoiding false alarms. Designed for indoor use. Exclusively performing with In Two Box. Seamless integration into any interior thanks to its white colour & its discreet design, compact & rounded. Test button for functional verification. Automatic monitoring of the battery lifetime (audible & light signal if defect). Rapid activation from the interface www.intwo.biz. Designation: Autonomous smoke sensor & alarm, essential for prevention in case of fire. Specifications: Integrated siren with an acoustic power above 85 d B to 3 meters. Open air range: 150m. Radio frequency: 868, 3 M Hz. Autonomy: Lithium battery for a 10 years life cycle. (for a non-intensive use, non-replaceable battery). Power: Lithium battery. Use: 0 C + 55 C. Height: 69mm. Depth: 105mm. Information: Model designed according to the European quality standards, with the same performances as professionals detectors (mandatory in public places). Certification: EN 14604.