diff --git a/WLAN_Thermometer.ino b/WLAN_Thermometer.ino
index 42ac36c..b3b80f5 100644
--- a/WLAN_Thermometer.ino
+++ b/WLAN_Thermometer.ino
@@ -184,7 +184,10 @@ void loop()
               client.println();
               client.println("<!DOCTYPE html>\n");
               client.println("<html>\n");
+              client.println("<head>\n");
+              client.println("<title>Temperatur KircheGratenstadt Staaken</title>\n");
               client.println("<meta http-equiv=\"refresh\" content=\"5\">\n");
+              client.println("</head>\n");
               client.println("<body>\n");
               client.println("<center>\n");
               client.println("<h1 style=\"color:green;\">Temperatur Kirche</h1>\n");
@@ -388,7 +391,7 @@ bool is_wintertime(time_t t)
 
 void get_sensor_data(void)
 {
-  temp[ACT] = constrain(dht.readTemperature(), -20.0, 80.0);
+  temp[ACT] = constrain(dht.readTemperature(), -40.0, 80.0);
   if (temp[ACT] < temp[MIN])
     temp[MIN] = temp[ACT];
   if (temp[ACT] > temp[MAX])
@@ -400,7 +403,7 @@ void get_sensor_data(void)
   if (hum[ACT] > hum[MAX])
     hum[MAX] = hum[ACT];
 
-  heat[ACT] = constrain(dht.computeHeatIndex(temp[ACT], hum[ACT], false), -20.0, 80.0);
+  heat[ACT] = constrain(dht.computeHeatIndex(temp[ACT], hum[ACT], false), -40.0, 80.0);
   if (heat[ACT] < heat[MIN])
     heat[MIN] = heat[ACT];
   if (heat[ACT] > heat[MAX])
