Wisualarm Wireless Interconnected Carbon Monoxide Alarm / 7 Year Battery Dhihygc20br8b

High-performance Figaro electrochemical CO sensor to deliver accurate detection of carbon monoxide leakage and respond quickly
Long standby time, low power consumption, 7-year battery life
Three separate LED indicators to provide clear and apparent working status illustration
Built-in high-volume buzzer with alarm volume 85dB (A) at 3 m (9.84 ft)
Support low battery warning, one-click silence, and self-test
Peak level display function to inform users extra potential hazards in home
Informative and easy-to-read CO concentration display in screen
Wireless interconnected with maximum of 24 devices
End of life warning: LCD display shows End with the buzzer beeping and LED indicator flashing three times per minute
Requires interconnected gateway to work