&&This is a battery-operated carbon monoxide detector that uses electrochemical sensing technology to detect the presence of carbon monoxide gas in the air. This detector has an 85 decibel alarm and three LED status indicator lights; it functions as a standalone detector or can be used with the DSC 2-Way Wireless Security Suite. When paired to the control panel of the DSC 2-Way Wireless Security Suite, the model WS4913 detector can wirelessly communicate an activated alarm to the control panel allowing it to transmit the alarm to the central station to alert the appropriate authorities.

&&Heading 85.31 of the Customs Tariff provides for electric sound or visual signaling apparatus other than those of headings 85.12 (Electrical signaling equipment (excluding articles of heading 85.39 of a kind used for cycles or motor vehicles) or 85.30 (Electrical signaling equipment for railways, tramways, roads, inland waterways, parking facilities, port installations or airfields (other than those of heading 86.08)).&&&&The Explanatory Notes to heading 85.31 state that, with the specified exceptions, the heading covers all electrical apparatus used for signaling purposes, whether using sound or using visual indication. The Explanatory Notes provide examples of goods covered by the heading, one of which is “Electric vapour or gas alarms, consisting of a detector and a sound or visual alarm, to warn of the presence of hazardous gaseous mixtures (e.g., natural gas, methane)”.&&&&The model WS4913 detector meets the terms of heading 85.31 and is appropriately included therein; at the subheading level, this product is considered an ‘other’ apparatus of 8531.80.