diff --git a/hooks/scripts/etage_temperature_int_ext.php b/hooks/scripts/etage_temperature_int_ext.php
new file mode 100644
index 0000000..cea8a59
--- /dev/null
+++ b/hooks/scripts/etage_temperature_int_ext.php
@@ -0,0 +1,106 @@
+<?php
+// script to prevent when exterior temperature become inferior or superior to interior one
+class etage_temperature_int_ext extends hook
+{
+	public $hookName = "etage_temperature_int_ext";
+	public $active = false;			//enable/disable hook (true => enabled)
+	public $tempSup = 25;
+	public $tempInf = 20;
+
+
+	protected $devicelist = array(
+				METEO=> "tempc",
+				);
+
+	protected $portesList = array(
+		ENTREE_PORTE => "contact",
+		//GARAGE_PORTE => "contact",
+		RDC_CHAMBRE_BAIE => "contact",
+		RDC_SALON_BAIE => "contact"
+	);
+
+	function installHooks(&$indexDevices)
+	{
+		return $this->installHooksFunction($indexDevices);
+	}
+
+	// callback fonction. Is called with these 4 parameters
+	public function callBack(&$device, $property, $value)
+	{
+		global $indexDevices, $hooks;
+		static $time;
+		$portes = array();
+		$status = -1;
+		$msg = "";
+		if ($this->active)
+		{
+			logger(DEBUG, _("etage_temperature_int_ext hook"), null ,$device);
+
+			if (empty($time))	$time = now();
+			//echo  "Time is " . var_dump($time) . EOL;
+			//echo "minutes since time :" . now()->format("U") - $time->format("U");
+			if ((now()->format("U") - $time->format("U")) > 300)
+			{
+
+				$indoorTemp = $device->properties["indoortempc"]["value"];
+
+
+				if ( $value > $indoorTemp)
+				{
+					if( ($indoorTemp <= $this->tempSup) and empty($portes))
+					{
+						$status = 1;
+						//logger(ALERT, _("Open doors to climate"), null ,$device);
+					}elseif($indoorTemp >= $this -> tempSup and ! empty($portes))
+					{
+						$status = 0;
+						//logger(ALERT, _("Close doors to climate"), null, $device);
+					}
+				}elseif ( $value < $indoorTemp )
+				{
+					if (($indoorTemp >= $this->tempSup) and empty($portes) )
+					{
+						$status = 1;
+						//logger(ALERT, _("Open doors to climate"), null ,$device);
+					}elseif ($indoorTemp <= $this->tempSup)
+					{
+						$status = 0;
+						//logger(ALERT, _("Close doors to climate"), null, $device);
+					}
+					logger (INFO, sprintf(_("%s: notification received from MQTT from %s => parameter: %s value: %s"), $this->hookName, $device->friendlyName, $property, bool2string($value)), __FILE__ . ":" . __LINE__, $device);
+				}
+				print_r($portes);
+				if ($status == 1)
+				{
+					$portes = $hooks["test_portes"]->testPortes($this->portesList, false, false);
+					if (empty($portes))
+					{
+						$time = now();
+						foreach($portes as $porte)
+						{
+							$msg .= $porte . "\n";
+						}
+						logger(ALERT, _("Open doors to climate") . $msg, null, $device);
+					}
+				}else
+				{
+					$portes = $hooks["test_portes"]->testPortes($this->portesList, false, true);
+					if (!empty($portes))
+					{
+						$time = now();
+						foreach($portes as $porte)
+						{
+							$msg .= $porte . "\n";
+						}
+						logger(ALERT, _("Close doors to climate\n") . $msg, null, $device);
+					}
+				}
+			}
+		}else
+		{
+			logger(DEBUG, _("etage_temperature_int_ext hook is inactive"), null ,$device);
+		}
+	}
+}
+$hooks["etage_temperature_int_ext"] = new etage_temperature_int_ext();
+?>