diff --git a/powerwall.sh b/powerwall.sh
index 07490901..af88b53a 100755
--- a/powerwall.sh
+++ b/powerwall.sh
@@ -61,7 +61,7 @@ CHECKTEMP_SERVICE(){
 				[ $temp_diff -lt 0 ] && temp_diff=$(($temp_diff * -1))
 						
 				if [ $(bc -l <<< "$temp_f >= $temp_warn") -eq 1 ] && [ $(bc -l <<< "$temp_f < $temp_crit") -eq 1 ]; then
-					if [ $temp_diff -gt 1 ] || [ "$last_temp" = "1" ]; then
+					if [ $temp_diff -gt 1 ] || [ $last_temp -eq 1 ]; then
 						echo "($datetime) WARNING TEMP: ${temp_f}°F - (Difference of ${temp_diff}°)" | mail -s "${1} TEMP WARNING" $email_alert
 						echo "alert sent"
 						last_temp=$temp_f
@@ -69,7 +69,7 @@ CHECKTEMP_SERVICE(){
 					echo "($datetime) WARNING: ${temp_f}°F - (Difference of ${temp_diff}°)"
 					
 				elif [ $(bc -l <<< "$temp_f >= $temp_crit") -eq 1 ]; then
-					if [ $temp_diff -gt 1 ] || [ "$last_temp" = "1" ]; then
+					if [ $temp_diff -gt 1 ] || [ $last_temp -eq 1 ]; then
 						echo "($datetime) CRITICAL TEMP: ${temp_f}°F - (Difference of ${temp_diff}°)" | mail -s "${1} TEMP CRITICAL" $email_alert
 						echo "alert sent"
 						last_temp=$temp_f
@@ -80,7 +80,7 @@ CHECKTEMP_SERVICE(){
 					if [ $last_temp -gt 1 ]; then
 						echo -e "($datetime) NORMAL TEMP: ${temp_f}°F\nPrevious Temp: ${last_temp}°F" | mail -s "${1} BACK TO NORMAL" $email_alert
 						echo "alert sent"
-					elif [ "$last_temp" = "0" ]; then
+					elif [ $last_temp -eq 0 ]; then
 						echo "NORMAL TEMP: ${temp_f}°F" | mail -s "${1} TEMP NORMAL" $email_alert;
 					fi
 					last_temp=1