REV CO-200. Detected gas types: Carbon monoxide (CO), Connectivity technology: Wireless. Product colour: White, Display type: LCD. Power source type: Battery, AC input voltage: 1.5 V, Compatible battery sizes: AA Power Power source type: Battery AC input voltage: 1.5 V Number of batteries supported: 3 Compatible battery sizes: AA Design Product colour: White Built-in display: Yes Display type: LCD Features Detected gas types: Carbon monoxide (CO) Connectivity technology: WirelessVis mereVis mindre