diff --git a/02.nicsensor/nicsensor.sh b/02.nicsensor/nicsensor.sh
index c9aa22d..03300ca 100644
--- a/02.nicsensor/nicsensor.sh
+++ b/02.nicsensor/nicsensor.sh
@@ -937,7 +937,8 @@ convert_tmp112_data(){
     dec_val=$(echo "ibase=16; $upper_hex_value" | bc)
 
     binary_number=$(echo "ibase=16;obase=2;$upper_hex_value" | bc)
-    last_digit=$(echo $binary_number | cut -c 16)
+    bin_length=$(echo $binary_number | awk '{print length($0)}')
+    last_digit=$(echo $binary_number | cut -c $bin_length)
     if [ $last_digit -eq 0 ];then
         temp=$(echo "scale=4; $dec_val / 16 * 0.0625" | bc)
     elif [ $last_digit -eq 1];then