OG Polling module

class Custom_Polling {
    [string]$Device
    [string]$Status

    Custom_Polling([string]$Device) {
        $this.Device = $Device
        $this.Status = $this.Pulse($Device)
    }

    [string] Pulse($Device) {
        try {
            $job = Start-Job -ScriptBlock {
                param($Device)
                Test-NetConnection -ComputerName $Device -Port 22
            } -ArgumentList $Device | Wait-Job -Timeout 5
            #
            if ((Get-Job -Id $job.Id).State -eq 'Completed') {
                $result = 'UP'
            }
            else {
                $result = 'DOWN'
            }
        }
        catch {
            $job = Get-Job -Command "Test-NetConnection -Computername $Device -Port 22"
            $result = 'ERROR'
        }
        finally {
            if ($null -ne $job) {
                Remove-Job -Id $job.id
            }
        }
        return $result
    }
}
function Invoke-Polling {
    <#
    Query devices for SSH open and available and store as Polling active or down
    #>
    param ([Parameter(Mandatory=$True)][string]$Path)
    if (Test-path -path $path) {
        $Devices = Get-Content -Path $Path
    }
    $obj = New-Object System.Collections.ArrayList
    foreach ($Dev in $Devices) {
        $poll = [Custom_Polling]::new($Dev)
        $obj.Add($poll)
    }
    Write-Output $obj

}