Smoke alarm making low-battery chirp noise in the middle of night can be really annoying. Nest Protect Smoke & Carbon Monoxide is technologically advanced system that makes life easy. You can silence alert with a wave of hand, no need to swing broom or towel for this.
It connects with your smartphone or tablet to send messages when alarm goes off or the battery power is low. It shows green light as indicator for everything is working fine. It detects harmful levels of carbon monoxide and even speaks to you in human voice. Also, it lights up your path at night. $129.00