import type { PlatformAccessory } from 'homebridge';
import { VirtualAccessoriesPlatform } from '../platform.js';
import { AccessoryConfiguration } from '../configuration/configurationAccessory.js';
import { BinarySensor } from './binarySensor.js';
/**
 * CarbonMonoxideSensor - Sensor implementation
 */
export declare class CarbonMonoxideSensor extends BinarySensor {
    constructor(platform: VirtualAccessoriesPlatform, accessory: PlatformAccessory, accessoryConfiguration: AccessoryConfiguration);
    protected getStateName(state: number): string;
    static get CO_LEVELS_NORMAL(): number;
    static get CO_LEVELS_ABNORMAL(): number;
}