GameManager.cs

using System.Collections;
using System.Collections.Generic;
using System.Text;
using UnityEngine;
using Valve.VR;

public class GameManager : MonoBehaviour
{
    [Range(10, 1000)]
    public long LagMillis = 100;

    // Start is called before the first frame update
    void Start()
    {
        ListDevices();
    }

    void ListDevices()
    {
        for (int i = 0; i < SteamVR.connected.Length; ++i)
        {
            ETrackedPropertyError error = new ETrackedPropertyError();
            StringBuilder sb = new StringBuilder();
            OpenVR.System.GetStringTrackedDeviceProperty((uint)i, ETrackedDeviceProperty.Prop_SerialNumber_String, sb, OpenVR.k_unMaxPropertyStringSize, ref error);
            var SerialNumber = sb.ToString();

            OpenVR.System.GetStringTrackedDeviceProperty((uint)i, ETrackedDeviceProperty.Prop_ModelNumber_String, sb, OpenVR.k_unMaxPropertyStringSize, ref error);
            var ModelNumber = sb.ToString();
            if(SerialNumber.Length > 0 || ModelNumber.Length > 0)
                Debug.Log("Device " + i.ToString() + " = " + SerialNumber + " | " + ModelNumber);
        }
    }

    // Update is called once per frame
    void Update()
    {
        
    }
}