diff --git a/includes/discovery/functions.inc.php b/includes/discovery/functions.inc.php
index 1509d4fe0d..715deaeaed 100644
--- a/includes/discovery/functions.inc.php
+++ b/includes/discovery/functions.inc.php
@@ -881,7 +881,7 @@ function avtech_add_sensor($device, $sensor)
  * @param $sensor
  * @return int
  */
-function get_device_divisor($device, $serial, $divisor, $sensor)
+function get_device_divisor($device, $serial, $sensor)
 {
     if (($device['os'] == 'poweralert') && ($sensor == 'current' || $sensor == 'frequencies' || $sensor == 'voltages')) {
         if (version_compare($serial, '12.06.0068', '>=')) {
diff --git a/includes/discovery/sensors/current/rfc1628.inc.php b/includes/discovery/sensors/current/rfc1628.inc.php
index 375ff691e9..82f83612f3 100644
--- a/includes/discovery/sensors/current/rfc1628.inc.php
+++ b/includes/discovery/sensors/current/rfc1628.inc.php
@@ -1,6 +1,6 @@
 <?php
 
-$divisor = get_device_divisor($device, $_tmp_serial, $divisor, "current");
+$divisor = get_device_divisor($device, $_tmp_serial, 'current');
 
 // RFC1628 UPS
 if (isset($config['modules_compat']['rfc1628'][$device['os']]) && $config['modules_compat']['rfc1628'][$device['os']]) {
diff --git a/includes/discovery/sensors/frequencies/rfc1628.inc.php b/includes/discovery/sensors/frequencies/rfc1628.inc.php
index 51baa599a3..a82a0a8da5 100644
--- a/includes/discovery/sensors/frequencies/rfc1628.inc.php
+++ b/includes/discovery/sensors/frequencies/rfc1628.inc.php
@@ -17,7 +17,7 @@ if (isset($config['modules_compat']['rfc1628'][$device['os']]) && $config['modul
 
         $current = (snmp_get($device, $freq_oid, '-Oqv') / 10);
         $type    = 'rfc1628';
-        $divisor = get_device_divisor($device, $_tmp_serial, $divisor, "frequencies");
+        $divisor = get_device_divisor($device, $_tmp_serial, 'frequencies');
 
         $index = '3.2.0.'.$i;
         discover_sensor($valid['sensor'], 'frequency', $device, $freq_oid, $index, $type, $descr, $divisor, '1', null, null, null, null, $current);
@@ -27,7 +27,7 @@ if (isset($config['modules_compat']['rfc1628'][$device['os']]) && $config['modul
     $descr    = 'Output';
     $current  = (snmp_get($device, $freq_oid, '-Oqv') / 10);
     $type     = 'rfc1628';
-    $divisor = get_device_divisor($device, $_tmp_serial, $divisor, "frequencies");
+    $divisor = get_device_divisor($device, $_tmp_serial, 'frequencies');
 
     $index = '4.2.0';
     discover_sensor($valid['sensor'], 'frequency', $device, $freq_oid, $index, $type, $descr, $divisor, '1', null, null, null, null, $current);
@@ -36,7 +36,7 @@ if (isset($config['modules_compat']['rfc1628'][$device['os']]) && $config['modul
     $descr    = 'Bypass';
     $current  = (snmp_get($device, $freq_oid, '-Oqv') / 10);
     $type     = 'rfc1628';
-    $divisor = get_device_divisor($device, $_tmp_serial, $divisor, "frequencies");
+    $divisor = get_device_divisor($device, $_tmp_serial, 'frequencies');
 
     $index = '5.1.0';
     discover_sensor($valid['sensor'], 'frequency', $device, $freq_oid, $index, $type, $descr, $divisor, '1', null, null, null, null, $current);
diff --git a/includes/discovery/sensors/voltages/rfc1628.inc.php b/includes/discovery/sensors/voltages/rfc1628.inc.php
index 7a077eaa18..a4ab98a1ce 100644
--- a/includes/discovery/sensors/voltages/rfc1628.inc.php
+++ b/includes/discovery/sensors/voltages/rfc1628.inc.php
@@ -15,7 +15,7 @@ if (isset($config['modules_compat']['rfc1628'][$device['os']]) && $config['modul
             $split_oid        = explode('.', $oid);
             $volt_id          = $split_oid[(count($split_oid) - 1)];
             $volt_oid         = "1.3.6.1.2.1.33.1.2.5.$volt_id";
-            $divisor = get_device_divisor($device, $_tmp_serial, $divisor, 'voltages');
+            $divisor = get_device_divisor($device, $_tmp_serial, 'voltages');
 
             $volt  = (snmp_get($device, $volt_oid, '-O vq') / $divisor);
             $descr = 'Battery'.(count(explode("\n", $oids)) == 1 ? '' : ' '.($volt_id + 1));
@@ -38,7 +38,7 @@ if (isset($config['modules_compat']['rfc1628'][$device['os']]) && $config['modul
         }
 
         $type    = 'rfc1628';
-        $divisor = get_device_divisor($device, $_tmp_serial, $divisor, 'voltages');
+        $divisor = get_device_divisor($device, $_tmp_serial, 'voltages');
 
         $current = (snmp_get($device, $volt_oid, '-Oqv') / $divisor);
         $index   = $i;
@@ -58,10 +58,10 @@ if (isset($config['modules_compat']['rfc1628'][$device['os']]) && $config['modul
         }
 
         $type    = 'rfc1628';
-        $divisor = get_device_divisor($device, $_tmp_serial, $divisor, 'voltages');
+        $divisor = get_device_divisor($device, $_tmp_serial, 'voltages');
 
         $current = (snmp_get($device, $volt_oid, '-Oqv') / $divisor);
-        $divisor = get_device_divisor($device, $_tmp_serial, $divisor, 'voltages');
+        $divisor = get_device_divisor($device, $_tmp_serial, 'voltages');
         $index   = (100 + $i);
 
         discover_sensor($valid['sensor'], 'voltage', $device, $volt_oid, $index, $type, $descr, $divisor, '1', null, null, null, null, $current);
@@ -79,7 +79,7 @@ if (isset($config['modules_compat']['rfc1628'][$device['os']]) && $config['modul
         }
 
         $type    = 'rfc1628';
-        $divisor = get_device_divisor($device, $_tmp_serial, $divisor, 'voltages');
+        $divisor = get_device_divisor($device, $_tmp_serial, 'voltages');
 
         $current = (snmp_get($device, $volt_oid, '-Oqv') / $divisor);
         $index   = (200 + $i);