diff --git a/target_simulator/core/sfp_structures.py b/target_simulator/core/sfp_structures.py
index 390e763..5619adb 100644
--- a/target_simulator/core/sfp_structures.py
+++ b/target_simulator/core/sfp_structures.py
@@ -220,7 +220,9 @@ class RisTargetsBlock(ctypes.Structure):
 class SfpRisStatusPayload(ctypes.Structure):
     _pack_ = 1
     _fields_ = [
+        ("scenario_tag", DataTag),
         ("scenario", RisScenario),
+        ("target_tag", DataTag),
         ("tgt", RisTargetsBlock),
     ]
 
diff --git a/target_simulator/gui/sfp_debug_window.py b/target_simulator/gui/sfp_debug_window.py
index 1d8e226..c4e6031 100644
--- a/target_simulator/gui/sfp_debug_window.py
+++ b/target_simulator/gui/sfp_debug_window.py
@@ -591,34 +591,95 @@ class SfpDebugWindow(tk.Toplevel):
                             self.scenario_tree.delete(iid)
                         scenario = struct.get("scenario", {}) if isinstance(struct, dict) else {}
                         if scenario:
-                            # Insert in deterministic order
+                            # Insert in deterministic order and convert to human-friendly units
+                            # Conversions inferred from C++ implementation:
+                            # - angles are sent in radians -> display degrees
+                            # - velocities are m/s -> display ft/s
+                            # - altitudes are meters -> display feet
+                            import math
+
+                            def to_deg(v):
+                                try:
+                                    return float(v) * (180.0 / math.pi)
+                                except Exception:
+                                    return v
+
+                            def m_s_to_ft_s(v):
+                                try:
+                                    return float(v) * 3.280839895
+                                except Exception:
+                                    return v
+
+                            def m_to_ft(v):
+                                try:
+                                    return float(v) * 3.280839895
+                                except Exception:
+                                    return v
+
                             order = [
-                                ("timetag", "timetag"),
-                                ("platform_azimuth", "platform_azimuth"),
-                                ("vx", "vx"),
-                                ("vy", "vy"),
-                                ("vz", "vz"),
-                                ("baro_altitude", "baro_altitude"),
-                                ("latitude", "latitude"),
-                                ("longitude", "longitude"),
-                                ("true_heading", "true_heading"),
+                                ("timetag", "timetag", ""),
+                                ("platform_azimuth", "platform_azimuth", "°"),
+                                ("vx", "vx", "ft/s"),
+                                ("vy", "vy", "ft/s"),
+                                ("vz", "vz", "ft/s"),
+                                ("baro_altitude", "baro_altitude", "ft"),
+                                ("latitude", "latitude", "°"),
+                                ("longitude", "longitude", "°"),
+                                ("true_heading", "true_heading", "°"),
                             ]
-                            for label, key in order:
+                            for label, key, unit in order:
                                 if key in scenario:
-                                    self.scenario_tree.insert("", tk.END, values=(label, scenario.get(key)))
+                                    val = scenario.get(key)
+                                    # apply conversions
+                                    if key == "platform_azimuth" or key == "true_heading":
+                                        display_val = f"{to_deg(val):.6f} {unit}" if isinstance(val, (int, float)) else val
+                                    elif key in ("vx", "vy", "vz"):
+                                        display_val = f"{m_s_to_ft_s(val):.3f} {unit}" if isinstance(val, (int, float)) else val
+                                    elif key == "baro_altitude":
+                                        display_val = f"{m_to_ft(val):.3f} {unit}" if isinstance(val, (int, float)) else val
+                                    elif key in ("latitude", "longitude"):
+                                        display_val = f"{val:.9f} {unit}" if isinstance(val, (int, float)) else val
+                                    else:
+                                        display_val = val
+                                    self.scenario_tree.insert("", tk.END, values=(f"{label} {('('+unit+')' if unit else '')}", display_val))
 
                         # targets
                         for iid in self.ris_tree.get_children():
                             self.ris_tree.delete(iid)
                         targets = struct.get("targets", []) if isinstance(struct, dict) else []
+                        # Update target column headers to show units
+                        try:
+                            self.ris_tree.heading("heading", text="heading (°)")
+                            self.ris_tree.heading("x", text="x (m)")
+                            self.ris_tree.heading("y", text="y (m)")
+                            self.ris_tree.heading("z", text="z (ft)")
+                        except Exception:
+                            pass
+
                         for t in targets:
+                            # Convert heading (rad->deg) and z (m->ft)
+                            try:
+                                heading = float(t.get("heading"))
+                                heading_deg = heading * (180.0 / 3.141592653589793)
+                            except Exception:
+                                heading_deg = t.get("heading")
+                            try:
+                                x = float(t.get("x"))
+                                y = float(t.get("y"))
+                                z_m = float(t.get("z"))
+                                z_ft = z_m * 3.280839895
+                            except Exception:
+                                x = t.get("x")
+                                y = t.get("y")
+                                z_ft = t.get("z")
+
                             vals = (
                                 t.get("index"),
                                 t.get("flags"),
-                                f"{t.get('heading'):.3f}",
-                                f"{t.get('x'):.3f}",
-                                f"{t.get('y'):.3f}",
-                                f"{t.get('z'):.3f}",
+                                f"{heading_deg:.3f}",
+                                f"{x:.3f}",
+                                f"{y:.3f}",
+                                f"{z_ft:.3f}",
                             )
                             self.ris_tree.insert("", tk.END, values=vals)
                     except Exception: