diff --git a/scwx-qt/source/scwx/qt/settings/unit_settings.cpp b/scwx-qt/source/scwx/qt/settings/unit_settings.cpp
index 54e64364..e4cf4073 100644
--- a/scwx-qt/source/scwx/qt/settings/unit_settings.cpp
+++ b/scwx-qt/source/scwx/qt/settings/unit_settings.cpp
@@ -22,15 +22,19 @@ public:
          types::GetAccumulationUnitsName(types::AccumulationUnits::Inches);
       std::string defaultEchoTopsUnitsValue =
          types::GetEchoTopsUnitsName(types::EchoTopsUnits::Kilofeet);
+      std::string defaultOtherUnitsValue =
+         types::GetOtherUnitsName(types::OtherUnits::Default);
       std::string defaultSpeedUnitsValue =
          types::GetSpeedUnitsName(types::SpeedUnits::Knots);
 
       boost::to_lower(defaultAccumulationUnitsValue);
       boost::to_lower(defaultEchoTopsUnitsValue);
+      boost::to_lower(defaultOtherUnitsValue);
       boost::to_lower(defaultSpeedUnitsValue);
 
       accumulationUnits_.SetDefault(defaultAccumulationUnitsValue);
       echoTopsUnits_.SetDefault(defaultEchoTopsUnitsValue);
+      otherUnits_.SetDefault(defaultOtherUnitsValue);
       speedUnits_.SetDefault(defaultSpeedUnitsValue);
 
       accumulationUnits_.SetValidator(
@@ -41,6 +45,10 @@ public:
          SCWX_SETTINGS_ENUM_VALIDATOR(types::EchoTopsUnits,
                                       types::EchoTopsUnitsIterator(),
                                       types::GetEchoTopsUnitsName));
+      otherUnits_.SetValidator(
+         SCWX_SETTINGS_ENUM_VALIDATOR(types::OtherUnits,
+                                      types::OtherUnitsIterator(),
+                                      types::GetOtherUnitsName));
       speedUnits_.SetValidator(
          SCWX_SETTINGS_ENUM_VALIDATOR(types::SpeedUnits,
                                       types::SpeedUnitsIterator(),
@@ -51,14 +59,17 @@ public:
 
    SettingsVariable<std::string> accumulationUnits_ {"accumulation_units"};
    SettingsVariable<std::string> echoTopsUnits_ {"echo_tops_units"};
+   SettingsVariable<std::string> otherUnits_ {"other_units"};
    SettingsVariable<std::string> speedUnits_ {"speed_units"};
 };
 
 UnitSettings::UnitSettings() :
     SettingsCategory("unit"), p(std::make_unique<Impl>())
 {
-   RegisterVariables(
-      {&p->accumulationUnits_, &p->echoTopsUnits_, &p->speedUnits_});
+   RegisterVariables({&p->accumulationUnits_,
+                      &p->echoTopsUnits_,
+                      &p->otherUnits_,
+                      &p->speedUnits_});
    SetDefaults();
 }
 UnitSettings::~UnitSettings() = default;
@@ -76,6 +87,11 @@ SettingsVariable<std::string>& UnitSettings::echo_tops_units() const
    return p->echoTopsUnits_;
 }
 
+SettingsVariable<std::string>& UnitSettings::other_units() const
+{
+   return p->otherUnits_;
+}
+
 SettingsVariable<std::string>& UnitSettings::speed_units() const
 {
    return p->speedUnits_;
@@ -91,6 +107,7 @@ bool operator==(const UnitSettings& lhs, const UnitSettings& rhs)
 {
    return (lhs.p->accumulationUnits_ == rhs.p->accumulationUnits_ &&
            lhs.p->echoTopsUnits_ == rhs.p->echoTopsUnits_ &&
+           lhs.p->otherUnits_ == rhs.p->otherUnits_ &&
            lhs.p->speedUnits_ == rhs.p->speedUnits_);
 }
 
diff --git a/scwx-qt/source/scwx/qt/settings/unit_settings.hpp b/scwx-qt/source/scwx/qt/settings/unit_settings.hpp
index c058857a..c849cffb 100644
--- a/scwx-qt/source/scwx/qt/settings/unit_settings.hpp
+++ b/scwx-qt/source/scwx/qt/settings/unit_settings.hpp
@@ -27,6 +27,7 @@ public:
 
    SettingsVariable<std::string>& accumulation_units() const;
    SettingsVariable<std::string>& echo_tops_units() const;
+   SettingsVariable<std::string>& other_units() const;
    SettingsVariable<std::string>& speed_units() const;
 
    static UnitSettings& Instance();
diff --git a/scwx-qt/source/scwx/qt/types/unit_types.cpp b/scwx-qt/source/scwx/qt/types/unit_types.cpp
index fb242dd7..71d6288c 100644
--- a/scwx-qt/source/scwx/qt/types/unit_types.cpp
+++ b/scwx-qt/source/scwx/qt/types/unit_types.cpp
@@ -37,6 +37,11 @@ static const std::unordered_map<EchoTopsUnits, std::string> echoTopsUnitsName_ {
    {EchoTopsUnits::User, "User-defined"},
    {EchoTopsUnits::Unknown, "?"}};
 
+static const std::unordered_map<OtherUnits, std::string> otherUnitsName_ {
+   {OtherUnits::Default, "Default"},
+   {OtherUnits::User, "User-defined"},
+   {OtherUnits::Unknown, "?"}};
+
 static const std::unordered_map<SpeedUnits, std::string>
    speedUnitsAbbreviation_ {{SpeedUnits::KilometersPerHour, "km/h"},
                             {SpeedUnits::Knots, "kts"},
@@ -69,6 +74,7 @@ SCWX_GET_ENUM(AccumulationUnits,
               GetAccumulationUnitsFromName,
               accumulationUnitsName_)
 SCWX_GET_ENUM(EchoTopsUnits, GetEchoTopsUnitsFromName, echoTopsUnitsName_)
+SCWX_GET_ENUM(OtherUnits, GetOtherUnitsFromName, otherUnitsName_)
 SCWX_GET_ENUM(SpeedUnits, GetSpeedUnitsFromName, speedUnitsName_)
 
 const std::string& GetAccumulationUnitsAbbreviation(AccumulationUnits units)
@@ -91,6 +97,11 @@ const std::string& GetEchoTopsUnitsName(EchoTopsUnits units)
    return echoTopsUnitsName_.at(units);
 }
 
+const std::string& GetOtherUnitsName(OtherUnits units)
+{
+   return otherUnitsName_.at(units);
+}
+
 const std::string& GetSpeedUnitsAbbreviation(SpeedUnits units)
 {
    return speedUnitsAbbreviation_.at(units);
diff --git a/scwx-qt/source/scwx/qt/types/unit_types.hpp b/scwx-qt/source/scwx/qt/types/unit_types.hpp
index f0c2147f..2fd1c5ab 100644
--- a/scwx-qt/source/scwx/qt/types/unit_types.hpp
+++ b/scwx-qt/source/scwx/qt/types/unit_types.hpp
@@ -34,6 +34,15 @@ typedef scwx::util::
    Iterator<EchoTopsUnits, EchoTopsUnits::Kilofeet, EchoTopsUnits::User>
       EchoTopsUnitsIterator;
 
+enum class OtherUnits
+{
+   Default,
+   User,
+   Unknown
+};
+typedef scwx::util::Iterator<OtherUnits, OtherUnits::Default, OtherUnits::User>
+   OtherUnitsIterator;
+
 enum class SpeedUnits
 {
    KilometersPerHour,
@@ -55,6 +64,9 @@ const std::string& GetEchoTopsUnitsAbbreviation(EchoTopsUnits units);
 const std::string& GetEchoTopsUnitsName(EchoTopsUnits units);
 EchoTopsUnits      GetEchoTopsUnitsFromName(const std::string& name);
 
+const std::string& GetOtherUnitsName(OtherUnits units);
+OtherUnits         GetOtherUnitsFromName(const std::string& name);
+
 const std::string& GetSpeedUnitsAbbreviation(SpeedUnits units);
 const std::string& GetSpeedUnitsName(SpeedUnits units);
 SpeedUnits         GetSpeedUnitsFromName(const std::string& name);
diff --git a/scwx-qt/source/scwx/qt/ui/settings/unit_settings_widget.cpp b/scwx-qt/source/scwx/qt/ui/settings/unit_settings_widget.cpp
index f38ae8a1..fc1a6b9a 100644
--- a/scwx-qt/source/scwx/qt/ui/settings/unit_settings_widget.cpp
+++ b/scwx-qt/source/scwx/qt/ui/settings/unit_settings_widget.cpp
@@ -132,6 +132,16 @@ public:
                               types::GetSpeedUnitsName);
       AddRow(speedUnits_, "Speed", speedComboBox);
 
+      QComboBox* otherComboBox = new QComboBox(self);
+      otherComboBox->setSizePolicy(QSizePolicy::Expanding,
+                                   QSizePolicy::Preferred);
+      otherUnits_.SetSettingsVariable(unitSettings.other_units());
+      SCWX_SETTINGS_COMBO_BOX(otherUnits_,
+                              otherComboBox,
+                              types::OtherUnitsIterator(),
+                              types::GetOtherUnitsName);
+      AddRow(otherUnits_, "Other", otherComboBox);
+
       QSpacerItem* spacer =
          new QSpacerItem(0, 0, QSizePolicy::Minimum, QSizePolicy::Expanding);
       gridLayout_->addItem(spacer, row, 0);
@@ -145,6 +155,7 @@ public:
 
    settings::SettingsInterface<std::string> accumulationUnits_ {};
    settings::SettingsInterface<std::string> echoTopsUnits_ {};
+   settings::SettingsInterface<std::string> otherUnits_ {};
    settings::SettingsInterface<std::string> speedUnits_ {};
 };
 
diff --git a/test/data b/test/data
index 03b6188c..6b8df3fb 160000
--- a/test/data
+++ b/test/data
@@ -1 +1 @@
-Subproject commit 03b6188cdf1b85f65bae0de822194bc6fab9bd14
+Subproject commit 6b8df3fbed0bda444348a23fb06b95f52a65f592