diff --git a/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml b/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml
index 7f53e9b..55e4812 100644
--- a/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml
+++ b/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml
@@ -8745,22 +8745,26 @@ is less than 50% of this value</short_desc>
       <short_desc>PCF8583 rotorfreq (i2c) i2c address</short_desc>
       <reboot_required>true</reboot_required>
       <values>
-        <value code="80">0x50</value>
-        <value code="81">0x51</value>
+        <value code="80">Address 0x50 (80)</value>
+        <value code="81">Address 0x51 (81)</value>
       </values>
     </parameter>
+    <parameter default="2" name="PCF8583_MAGNET" type="INT32">
+      <short_desc>PCF8583 rotorfreq (i2c) pulse count</short_desc>
+      <long_desc>Nmumber of signals per rotation of actuator</long_desc>
+      <min>1</min>
+      <reboot_required>true</reboot_required>
+    </parameter>
     <parameter default="1000000" name="PCF8583_POOL" type="INT32">
-      <short_desc>PCF8583 rotorfreq (i2c) pool interval</short_desc>
+      <short_desc>PCF8583 rotorfreq (i2c) pool interval
+How often the sensor is readout</short_desc>
       <unit>us</unit>
       <reboot_required>true</reboot_required>
     </parameter>
     <parameter default="500000" name="PCF8583_RESET" type="INT32">
-      <short_desc>PCF8583 rotorfreq (i2c) counter reset value</short_desc>
-      <long_desc>Internal device counter is reset to 0 when overun this value, counter is able to store upto 6 digits reset of counter takes some time - measurement with reset has worse accurancy</long_desc>
+      <short_desc>PCF8583 rotorfreq (i2c) pulse reset value</short_desc>
+      <long_desc>Internal device counter is reset to 0 when overun this value, counter is able to store upto 6 digits reset of counter takes some time - measurement with reset has worse accurancy. 0 means reset counter after every measurement.</long_desc>
       <reboot_required>true</reboot_required>
-      <values>
-        <value code="0">- reset avter every measurement</value>
-      </values>
     </parameter>
     <parameter default="1013.25" name="SENS_BARO_QNH" type="FLOAT">
       <short_desc>QNH for barometer</short_desc>
@@ -10973,12 +10977,6 @@ MPC_Z_VEL_MAX_DN at zero throttle, and 0.5 * MPC_LAND_SPEED at full throttle</sh
         <value code="1">User assisted descent speed</value>
       </values>
     </parameter>
-    <parameter default="2" name="PCF8583_MAGNET" type="INT32">
-      <short_desc>PCF8583 rotorfreq (i2c) magnet count</short_desc>
-      <long_desc>Nmumber of signals per rotation of rotor</long_desc>
-      <min>1</min>
-      <reboot_required>true</reboot_required>
-    </parameter>
     <parameter default="0.1" name="RV_YAW_P" type="FLOAT">
       <short_desc>RV_YAW_P</short_desc>
     </parameter>