This is our Carbon Monoxide Gas Detection Alarm LCD Digital Display 2 Pack. Very easy to install at home or bedroom. Precise electro-optical sensor, high consistency and stability, move, or in the same place for that. Loud enough and sounds good.

Features:

• The normal working state is that the green light flashes every 30 seconds
• The blue backlit LCD display does not light up in standby mode (it will Lights up and alarms when carbon monoxide is detected).

Specifications:

• Brand: HCDIM
• Number of Batteries: 3
• Power Supply: 3 *AA batteries (Not Included Battery)
• Weight: 0.28 lbs

Package includes:

• 2 x Carbon Monoxide Gas Detector