New Upgrade of Carbon Monoxide Detectors - Imported electrochemical sensors, reliable readings, more responsive, to avoid false readings and false alarms. | Easy to Use - Plug and play, saving installation time. | LED Digital Display - Real-time monitoring and display of readings, so you can quickly understand the environmental conditions. | 85 Decibels High Volume Alarm - When the gas concentration reaches a certain level, the carbon monoxide alarm immediately emits an audible alarm >85 dB, allowing you to react quickly and protect your home. | Protect Your Home: Carbon monoxide detectors are suitable for bedroom, kitchen, living room, bathroom, apartment, garage, office, restaurant, hotel, etc.