Aroha Link Interlinked Smoke Alarm and Carbon Monoxide 10 Year Battery Interconnected Combination Fire & CO Detector

2-IN-1 PROTECTION - One detector detects both smoke and carbon monoxide. No need for two separate detectors, but complete protection in one device. INSTANT SIMULTANEOUS ALARM - All connected Aroha Link detectors sound an 85 dB alarm simultaneously in the event of smoke or CO. Fast detection, immediate response in every room. EXPANDABLE NETWORK - Connect up to 30 Aroha Link smoke, heat, CO, or combination detectors. Range up to 100 meters (without obstacles). CARBON MONOXIDE DETECTION - CO is colorless and odorless, but deadly. The combination detector emits an 85 dB alarm at dangerous CO levels caused by incomplete combustion. EARLY CO WARNING - Advanced sensors detect low carbon monoxide concentrations well before it becomes dangerous. 10-YEAR BATTERY - The built-in lithium battery offers 10 years of uninterrupted protection and cannot be replaced. No replacements, no hassle! ADVANCED PHOTOELECTRIC SENSORS - Detects smoke from smoldering fires quickly and effectively. Loud 85 dB alarm within 10 seconds. CERTIFIED SAFETY - Tested and certified in accordance with CE standards (EN14604 and EN50291). Meets the highest EU safety standards. EASY TO USE - Full front as test and mute button. Test one detector and all Aroha Link detectors join automatically. SMART SELF-TEST - Automatic self-test every minute for continuous reliability of both smoke and CO detection.