diff --git a/powerwall.sh b/powerwall.sh
index d84cf174..542638e1 100755
--- a/powerwall.sh
+++ b/powerwall.sh
@@ -645,12 +645,13 @@ LOGROTATE(){
 
 TEST(){
 	temptotal=0
-	countback=200000
+	# countback=200000
 	while IFS=$'\t' read date sensorid temp hum ;do
 		# echo date:$date sensorid:$sensorid temp:$temp hum:$hum
 		temptotal=$(bc <<< "scale=2; ${temptotal}+${temp}")
 		# echo "- ${temptotal} + ${temp}"
-	done  < <(${mysql_conn} -se "USE servermonitor; SELECT date,sensorid,temp,hum from sensor_data WHERE sensorid=2 ORDER BY id DESC LIMIT ${countback};")
+	done  < <(${mysql_conn} -se "USE servermonitor; SELECT date,sensorid,temp,hum from sensor_data WHERE sensorid=2 AND date BETWEEN 
+        DATE_SUB(DATE(NOW()), INTERVAL 1 DAY) AND DATE_SUB(DATE(NOW())) ORDER BY id DESC LIMIT ${countback};")
 	
 	average=$(bc <<< "scale=2; ${temptotal}/${countback}")