diff --git a/src/modules/vtol_att_control/vtol_att_control_params.c b/src/modules/vtol_att_control/vtol_att_control_params.c
index 66cfae160f..6fe476b8b2 100644
--- a/src/modules/vtol_att_control/vtol_att_control_params.c
+++ b/src/modules/vtol_att_control/vtol_att_control_params.c
@@ -36,12 +36,17 @@
  * Parameters for vtol attitude controller.
  *
  * @author Roman Bapst <roman@px4.io>
+ * @author Sander Smeets <sander@droneslab.com>
  */
 
 /**
  * VTOL number of engines
  *
+ * @unit amount
  * @min 0
+ * @max 8
+ * @increment 1
+ * @decimal 0
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_INT32(VT_MOT_COUNT, 0);
@@ -49,7 +54,11 @@ PARAM_DEFINE_INT32(VT_MOT_COUNT, 0);
 /**
  * Idle speed of VTOL when in multicopter mode
  *
+ * @unit pulse-width
  * @min 900
+ * @max 2000
+ * @increment 1
+ * @deciml 0
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_INT32(VT_IDLE_PWM_MC, 900);
@@ -59,7 +68,11 @@ PARAM_DEFINE_INT32(VT_IDLE_PWM_MC, 900);
  *
  * This is the minimum speed of the air flowing over the control surfaces.
  *
+ * @unit m/s
  * @min 0.0
+ * @max 30.0
+ * @increment 0.5
+ * @decimal 2
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_MC_ARSPD_MIN, 10.0f);
@@ -69,7 +82,11 @@ PARAM_DEFINE_FLOAT(VT_MC_ARSPD_MIN, 10.0f);
  *
  * This is the maximum speed of the air flowing over the control surfaces.
  *
+ * @unit m/s
  * @min 0.0
+ * @max 30.0
+ * @increment 0.5
+ * @decimal 2
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_MC_ARSPD_MAX, 30.0f);
@@ -79,7 +96,11 @@ PARAM_DEFINE_FLOAT(VT_MC_ARSPD_MAX, 30.0f);
  *
  * This is the airflow over the control surfaces for which no airspeed scaling is applied in multicopter mode.
  *
+ * @unit m/s
  * @min 0.0
+ * @max 30.0
+ * @increment 0.5
+ * @decimal 2
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_MC_ARSPD_TRIM, 10.0f);
@@ -90,8 +111,11 @@ PARAM_DEFINE_FLOAT(VT_MC_ARSPD_TRIM, 10.0f);
  * If set to one this parameter will cause permanent attitude stabilization in fw mode.
  * This parameter has been introduced for pure convenience sake.
  *
+ * @unit bool
  * @min 0
  * @max 1
+ * @increment 1
+ * @decimal 0
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_INT32(VT_FW_PERM_STAB, 0);
@@ -101,8 +125,11 @@ PARAM_DEFINE_INT32(VT_FW_PERM_STAB, 0);
  *
  * This parameter allows to adjust the neutral elevon position in fixed wing mode.
  *
- * @min -1
- * @max 1
+ * @unit percentage
+ * @min -1.0
+ * @max 1.0
+ * @increment 0.01
+ * @decimal 2
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_FW_PITCH_TRIM, 0.0f);
@@ -113,7 +140,11 @@ PARAM_DEFINE_FLOAT(VT_FW_PITCH_TRIM, 0.0f);
  * Indicates the maximum power the motor is able to produce. Used to calculate
  * propeller efficiency map.
  *
+ * @unit watt
  * @min 1
+ * @max 10000
+ * @increment 1
+ * @decimal 0
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_POWER_MAX, 120.0f);
@@ -123,8 +154,11 @@ PARAM_DEFINE_FLOAT(VT_POWER_MAX, 120.0f);
  *
  * Influences propeller efficiency at different power settings. Should be tuned beforehand.
  *
+ * @unit percentage
  * @min 0.0
- * @max 0.9
+ * @max 1.0
+ * @increment 0.01
+ * @decimal 3
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_PROP_EFF, 0.0f);
@@ -134,8 +168,11 @@ PARAM_DEFINE_FLOAT(VT_PROP_EFF, 0.0f);
  *
  * Gain for tuning the low-pass filter for the total airspeed estimate
  *
+ * @unit percentage
  * @min 0.0
- * @max 0.99
+ * @max 1.0
+ * @increment 0.01
+ * @decimal 3
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_ARSP_LP_GAIN, 0.3f);
@@ -143,8 +180,12 @@ PARAM_DEFINE_FLOAT(VT_ARSP_LP_GAIN, 0.3f);
 /**
  * VTOL Type (Tailsitter=0, Tiltrotor=1, Standard=2)
  *
+ * @unit enum
+ * @values 0=Tailsitter, 1=Tiltrotor, 2=Standard
  * @min 0
  * @max 2
+ * @increment 1
+ * @decimal 0
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_INT32(VT_TYPE, 0);
@@ -154,8 +195,11 @@ PARAM_DEFINE_INT32(VT_TYPE, 0);
  *
  * If set to 1 the elevons are locked in multicopter mode
  *
+ * @unit bool
  * @min 0
  * @max 1
+ * @increment 1
+ * @decimal 0
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_INT32(VT_ELEV_MC_LOCK, 0);
@@ -165,8 +209,11 @@ PARAM_DEFINE_INT32(VT_ELEV_MC_LOCK, 0);
  *
  * Time in seconds used for a transition
  *
- * @min 0.0
- * @max 5
+ * @unit seconds
+ * @min 0.00
+ * @max 10.00
+ * @increment 1
+ * @decimal 2
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_F_TRANS_DUR, 3.0f);
@@ -176,8 +223,11 @@ PARAM_DEFINE_FLOAT(VT_F_TRANS_DUR, 3.0f);
  *
  * Time in seconds used for a back transition
  *
- * @min 0.0
- * @max 5
+ * @unit seconds
+ * @min 0.00
+ * @max 10.00
+ * @increment 1
+ * @decimal 2
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_B_TRANS_DUR, 2.0f);
@@ -187,8 +237,11 @@ PARAM_DEFINE_FLOAT(VT_B_TRANS_DUR, 2.0f);
  *
  * Airspeed at which we can start blending both fw and mc controls. Set to 0 to disable.
  *
- * @min 0.0
- * @max 20.0
+ * @unit m/s
+ * @min 0.00
+ * @max 30.00
+ * @increment 1
+ * @decimal 2
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_ARSP_BLEND, 8.0f);
@@ -198,8 +251,11 @@ PARAM_DEFINE_FLOAT(VT_ARSP_BLEND, 8.0f);
  *
  * Airspeed at which we can switch to fw mode
  *
- * @min 1.0
- * @max 20
+ * @unit m/s
+ * @min 0.00
+ * @max 30.00
+ * @increment 1
+ * @decimal 2
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_ARSP_TRANS, 10.0f);
@@ -207,8 +263,11 @@ PARAM_DEFINE_FLOAT(VT_ARSP_TRANS, 10.0f);
 /**
  * Enable optimal recovery strategy for pitch-weak tailsitters
  *
+ * @unit bool
  * @min 0
  * @max 1
+ * @increment 1
+ * @decimal 0
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_INT32(VT_OPT_RECOV_EN, 0);
@@ -216,8 +275,11 @@ PARAM_DEFINE_INT32(VT_OPT_RECOV_EN, 0);
 /**
  * Enable weather-vane mode landings for missions
  *
+ * @unit bool
  * @min 0
  * @max 1
+ * @increment 1
+ * @decimal 0
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_INT32(VT_WV_LND_EN, 0);
@@ -228,8 +290,11 @@ PARAM_DEFINE_INT32(VT_WV_LND_EN, 0);
  * The desired yawrate from the controller will be scaled in order to avoid
  * yaw fighting against the wind.
  *
- * @min 0
- * @max 1
+ * @unit percentage
+ * @min 0.0
+ * @max 1.0
+ * @increment 0.01
+ * @decimal 3
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_WV_YAWR_SCL, 0.15f);
@@ -237,8 +302,11 @@ PARAM_DEFINE_FLOAT(VT_WV_YAWR_SCL, 0.15f);
 /**
  * Enable weather-vane mode for loiter
  *
+ * @unit bool
  * @min 0
  * @max 1
+ * @increment 1
+ * @decimal 0
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_INT32(VT_WV_LTR_EN, 0);
@@ -248,8 +316,11 @@ PARAM_DEFINE_INT32(VT_WV_LTR_EN, 0);
  *
  * Time in seconds after which transition will be cancelled. Disabled if set to 0.
  *
- * @min 0.0
- * @max 30.0
+ * @unit seconds
+ * @min 0.00
+ * @max 30.00
+ * @increment 1
+ * @decimal 2
  * @group VTOL Attitude Control
  */
 PARAM_DEFINE_FLOAT(VT_TRANS_TIMEOUT, 15.0f);