Nest Protect has been redesigned, adding a split-spectrum sensor which tests itself automatically and lasts up to a decade. You can hush the alarm from the Nest app on your phone and receive alerts when the alarm is activated.

• Silence the Nest Protect using the Nest app
• Phone alerts through the Nest app
• Lights the way with built-in path light that activate at night
• Tests itself, checking batteries and sensors
• Voice alarms indicate what the emergency is
• Detects carbon monoxide
• Requires Wi-Fi connection and smart phone or tablet running iOS or Android for Nest app