diff --git a/includes/discovery/functions.inc.php b/includes/discovery/functions.inc.php
index b622454ba..e93099f86 100644
--- a/includes/discovery/functions.inc.php
+++ b/includes/discovery/functions.inc.php
@@ -338,10 +338,7 @@ function sensor_low_limit($class, $current) {
             break;
 
         case 'signal':
-            $limit = ($current * 1.20);
-            if ($limit < -80 && $current > -80) {
-                $limit = -80;
-            }
+            $limit = -80;
             break;
     }//end switch
 
@@ -387,7 +384,7 @@ function sensor_limit($class, $current) {
             break;
 
         case 'signal';
-            $limit = 0;
+            $limit = -30;
             break;
     }//end switch
 
diff --git a/includes/discovery/sensors/temperatures/canopy.inc.php b/includes/discovery/sensors/temperatures/canopy.inc.php
index a268c52da..7acf089c7 100644
--- a/includes/discovery/sensors/temperatures/canopy.inc.php
+++ b/includes/discovery/sensors/temperatures/canopy.inc.php
@@ -15,7 +15,6 @@ if ($device['os'] == 'canopy') {
             list(,$current) = explode(' ', $oids);
             $index          = $oid;
             $descr          = 'System Temp';
-            discover_sensor($valid['sensor'], 'temperature', $device, $oid, $index, $type, $descr, $divisor, '1', null, null, null, null, $current);
+            discover_sensor($valid['sensor'], 'temperature', $device, $oid, $index, $type, $descr, $divisor, '1', -30, null, null, 50, $current);
         }
-    
-}
+}
\ No newline at end of file