diff --git a/libraries/AP_Mount/AP_Mount.cpp b/libraries/AP_Mount/AP_Mount.cpp
index 73a530477d..7805f6f970 100644
--- a/libraries/AP_Mount/AP_Mount.cpp
+++ b/libraries/AP_Mount/AP_Mount.cpp
@@ -35,24 +35,24 @@ const AP_Param::GroupInfo AP_Mount::var_info[] PROGMEM = {
     // @Param: RETRACT_X
     // @DisplayName: Mount roll angle when in retracted position
     // @Description: Mount roll angle when in retracted position
-    // @Units: Centi-Degrees
-    // @Range: -18000 17999
+    // @Units: Degrees
+    // @Range: -180.00 179.99
     // @Increment: 1
     // @User: Standard
 
     // @Param: RETRACT_Y
     // @DisplayName: Mount tilt/pitch angle when in retracted position
     // @Description: Mount tilt/pitch angle when in retracted position
-    // @Units: Centi-Degrees
-    // @Range: -18000 17999
+    // @Units: Degrees
+    // @Range: -180.00 179.99
     // @Increment: 1
     // @User: Standard
 
     // @Param: RETRACT_Z
     // @DisplayName: Mount yaw/pan angle when in retracted position
     // @Description: Mount yaw/pan angle when in retracted position
-    // @Units: Centi-Degrees
-    // @Range: -18000 17999
+    // @Units: Degrees
+    // @Range: -180.00 179.99
     // @Increment: 1
     // @User: Standard
     AP_GROUPINFO("RETRACT",    1, AP_Mount, _retract_angles, 0),
@@ -61,24 +61,24 @@ const AP_Param::GroupInfo AP_Mount::var_info[] PROGMEM = {
     // @Param: NEUTRAL_X
     // @DisplayName: Mount roll angle when in neutral position
     // @Description: Mount roll angle when in neutral position
-    // @Units: Centi-Degrees
-    // @Range: -18000 17999
+    // @Units: Degrees
+    // @Range: -180.00 179.99
     // @Increment: 1
     // @User: Standard
 
     // @Param: NEUTRAL_Y
     // @DisplayName: Mount tilt/pitch angle when in neutral position
     // @Description: Mount tilt/pitch angle when in neutral position
-    // @Units: Centi-Degrees
-    // @Range: -18000 17999
+    // @Units: Degrees
+    // @Range: -180.00 179.99
     // @Increment: 1
     // @User: Standard
 
     // @Param: NEUTRAL_Z
     // @DisplayName: Mount pan/yaw angle when in neutral position
     // @Description: Mount pan/yaw angle when in neutral position
-    // @Units: Centi-Degrees
-    // @Range: -18000 17999
+    // @Units: Degrees
+    // @Range: -180.00 179.99
     // @Increment: 1
     // @User: Standard
     AP_GROUPINFO("NEUTRAL",    2, AP_Mount, _neutral_angles, 0),
@@ -86,22 +86,22 @@ const AP_Param::GroupInfo AP_Mount::var_info[] PROGMEM = {
     // @Param: CONTROL_X
     // @DisplayName: Mount roll angle command from groundstation
     // @Description: Mount roll angle when in MavLink or RC control operation mode
-    // @Units: Centi-Degrees
-    // @Range: -18000 17999
+    // @Units: Degrees
+    // @Range: -180.00 179.99
     // @Increment: 1
 
     // @Param: CONTROL_Y
     // @DisplayName: Mount tilt/pitch angle command from groundstation
     // @Description: Mount tilt/pitch angle when in MavLink or RC control operation mode
-    // @Units: Centi-Degrees
-    // @Range: -18000 17999
+    // @Units: Degrees
+    // @Range: -180.00 179.99
     // @Increment: 1
 
     // @Param: CONTROL_Z
     // @DisplayName: Mount pan/yaw angle command from groundstation
     // @Description: Mount pan/yaw angle when in MavLink or RC control operation mode
-    // @Units: Centi-Degrees
-    // @Range: -18000 17999
+    // @Units: Degrees
+    // @Range: -180.00 179.99
     // @Increment: 1
     AP_GROUPINFO("CONTROL",    3, AP_Mount, _control_angles, 0),