diff --git a/inc/temp.inc.sh b/inc/temp.inc.sh
index 84f30f23..d59c8c30 100644
--- a/inc/temp.inc.sh
+++ b/inc/temp.inc.sh
@@ -496,9 +496,9 @@ Previous Temp: ${last_temp[${SENSOR//-/}]}${GAUGESH}"
 							#### LOGGING OF SERVERROOM SENSOR DIFFERENCE
 							if [ "${SENSOR}" == "ServerRoomLA" ]; then
 								if [ ! -f ${PW_TMPFOLDER}/.log.sr.difference ] || [ $(expr `date +%s` - $(stat -c %Y ${PW_TMPFOLDER}/.log.sr.difference)) -ge 300 ]; then
-									if [ "${temp_f}" != "" ] && [ "${ServerRoomTH}" != "" ]; then
+									if [ "${temp_probe_f}" != "" ] && [ "${ServerRoomTH}" != "" ]; then
 										[ ! -f ${PW_TMPFOLDER}/.log.sr.difference ] && touch ${PW_TMPFOLDER}/.log.sr.difference
-										temp_difference=$(bc <<< "scale=2; ${ServerRoomTH}-${temp_f}")
+										temp_difference=$(bc <<< "scale=2; ${ServerRoomTH}-${temp_probe_f}")
 										# (( $(bc <<<"${temp_difference} < 0") )) && temp_difference=`echo "scale=2; ${temp_difference} * -1" | bc`
 										echo "$(date "+%Y-%m-%d %H:%M:%S")~${temp_difference}" >> ${PW_TMPFOLDER}/.log.sr.difference
 									fi