SITERWELL Smoke Detector Carbon Monoxide Detector Combo with Voice Speaker, Dual Sensor Fire and CO Alarm with LED Light & Test Button, Battery Operated, Auto-Check, UL 217 & UL 2034 Standards, 1 Pack

Key features

• Unique Voice Speaker - Unique smoke detector and CO detector alarms distinguish between smoke alarms and CO warnings. Co alarm: "Warning, carbon monoxide, evacuate! Smoke alarm: "Fire!" . Verbal warning system reduces confusion and helps people maintain order.
• Reduced Cooking Nutrition Alert - This smoke and carbon monoxide detector uses photoelectric smoke sensing technology to quickly detect slow burns. It is suitable for many locations, especially in cooking areas, to reduce false alarms of cooking smoke.
• Not Disturb Mode - With SITERWELL fire and CO detectors, you don't have to worry about your rest. In low voltage or fault mode, simply press the button and the alarm clock will go into non-disruptive mode, avoiding nighttime alarms and frequent flashes, and you can enjoy approximately 10 hours of silence.
• Self Check Function - The smoke detector carbon monoxide detector combination replaces the manual daily test and automatically checks the batteries and sensors every 80 seconds to ensure they are working properly. You'll be alerted when a malfunction occurs.
• Longer Service Life - Keeps your home safe for up to 10 years. 2 replaceable AA batteries last 3 times longer than 9V batteries. When the combination detector is at the end of its life, an end-of-life signal will let you know when it's time to replace it.