program.cs

using System;
using Opc.UaFx;
using Opc.UaFx.Client;

namespace TraegerDiscoveryApp
{
    /// <summary>
    /// Traeger Nuget package needed: <PackageReference Include="Opc.UaFx.Advanced" Version="2.18.3" />
    /// </summary>
    /// <remarks>
    /// See also https://docs.traeger.de/en/software/sdk/opc-ua/net/client.development.guide
    /// </remarks>
    internal class Program
    {
        private static OpcClient client;

        private static void Main(string[] args)
        {
            Console.WriteLine("Hello OPC-UA Discovery World!");

            client = new OpcClient("opc.tcp://192.168.1.82:4840/");

            client.Connect();

            var node = client.BrowseNode(OpcObjectTypes.ObjectsFolder);

            Browse(node);

            Console.WriteLine("Press a key to exit");
            Console.ReadKey();
        }

        private static void Browse(OpcNodeInfo node, int level = 0)
        {
            // ns=2;s=Wise4012E:Potentio01
            if (node.Attribute(OpcAttribute.DisplayName).Value.ToString().ToLower().Contains("wise"))
            {
                try
                {
                    OpcNodeInfo opcNodeInfo = client.BrowseNode(node.NodeId);

                    var dataType = "SUBNODE";

                    var opcVariableNodeInfo = (opcNodeInfo as OpcVariableNodeInfo);

                    if (opcVariableNodeInfo != null)
                    {
                        // https://reference.opcfoundation.org/v104/PLCopen/v102/docs/9.2.1/
                        // datatypeid looks like 'i=1'; (Compare with number in 'OPC UA built-in data types' column)
                        var value = opcVariableNodeInfo.DataTypeId.ToString().Split('=')[1];

                        switch (value)
                        {
                            case "1":
                                dataType = "BOOLEAN";
                                break;

                            case "2":
                                dataType = "SBYTE";
                                break;

                            case "3":
                                dataType = "BYTE";
                                break;

                            case "4":
                                dataType = "INT16";
                                break;

                            case "5":
                                dataType = "UINT16";
                                break;

                            case "6":
                                dataType = "INT32";
                                break;

                            case "7":
                                dataType = "UINT32";
                                break;

                            case "8":
                                dataType = "INT64";
                                break;

                            case "9":
                                dataType = "UINT64";
                                break;

                            case "10":
                                dataType = "FLOAT";
                                break;

                            case "11":
                                dataType = "DOUBLE";
                                break;

                            case "12":
                                dataType = "STRING";
                                break;

                            case "13":
                                dataType = "DATETIME";
                                break;

                            default:
                                dataType = "TBD";
                                break;
                        }

                        dataType = $"{ dataType} ({ opcVariableNodeInfo.DataTypeId})";
                    }

                    Console.WriteLine($"{node.NodeId.ToString(OpcNodeIdFormat.Foundation)} - {dataType}");
                }
                catch (Exception ex)
                {
                    Console.WriteLine($"Exception: {ex.Message}");
                }
            }

            level++;

            foreach (var childNode in node.Children())
            {
                Browse(childNode, level);
            }
        }
    }
}

Add the correct OPC-UA Nuget package and fill in the OPC-UA Server address. This code is executed with no server-side security set up in mind.