Haoyue DT 830D digital Multimeter shown reading without checking?

My multimeter shown readings without checking something and on continuity test when I disconnect the nob meter beeps continue?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0