KARUOTOP Wireless Interlinked Smoke and Heat Alarm Bundle, 10-Year Sealed Battery, Large Test/Silence Button, Compliant with Scotland & England Law, CE & BS Certified, Pre-Linked, 3-Pack

Wireless Interconnection: This multi-pack of interconnected smoke and heat alarms is pre-linked and can connect with up to 30 wireless alarms. With a 100-meter range, they form a smart network so that if one alarm goes off, all others will sound, ensuring safety wherever you are.
Compliance with New Scottish Law: Smoke alarms cover living rooms, bedrooms, hallways, and basements for full home protection. Heat alarms are for spots like attics, garages, kitchens, and basements, where traditional smoke alarms might not work well.
Built-In 10-Year Battery: Both the smoke alarm and heat alarm offer uninterrupted 24/7 protection with sealed 10-year lithium batteries, eliminating the hassle of frequent battery changes.
Ultra-Thin Design & Large Button: This slim smoke detector, only 3 cm thick, is designed for easy installation anywhere. Test or mute the alarm with a long stick instead of a ladder, making it safer for older users who don’t need to climb to confirm functionality.
Precise Detection: The smoke alarm employs a photoelectric sensor for quick and accurate smoke detection, while the heat alarm detects rapid temperature increases, ranging from 129°F (54°C) to 149°F (65°C), thanks to its highly sensitive NTC thermistor.
Rapidly Find Alarm Source: Press Test/Silence on any linked alarm. If one keeps sounding, it’s the source alarm. You can also identify the source alarm by its red LED flash, while others alternate between red and green.
Easy Installation: Simply switch on the linked smoke and heat alarms, test them, and effortlessly install them on any wall or ceiling using the included adhesive tape or screws—no electrician required.