diff --git a/src/datasource-zabbix/datasource.js b/src/datasource-zabbix/datasource.js
index 37beaa1..4c7ccfd 100644
--- a/src/datasource-zabbix/datasource.js
+++ b/src/datasource-zabbix/datasource.js
@@ -134,8 +134,9 @@ export class ZabbixAPIDatasource {
         if (!target.mode || target.mode === 0) {
 
           // Build query in asynchronous manner
-          return self.queryProcessor.build(groupFilter, hostFilter, appFilter, itemFilter)
-            .then(function(items) {
+          return self.queryProcessor
+            .build(groupFilter, hostFilter, appFilter, itemFilter, 'num')
+            .then(items => {
               // Add hostname for items from multiple hosts
               var addHostName = utils.isRegex(target.host.filter);
               var getHistory;
@@ -207,35 +208,39 @@ export class ZabbixAPIDatasource {
 
         // Query text data
         else if (target.mode === 2) {
-          return self.queryProcessor.build(groupFilter, hostFilter, appFilter, itemFilter)
-            .then(function(items) {
-              var deferred = self.q.defer();
+          return self.queryProcessor
+            .build(groupFilter, hostFilter, appFilter, itemFilter, 'text')
+            .then(items => {
               if (items.length) {
-                self.zabbixAPI.getLastValue(items[0].itemid).then(function(lastvalue) {
-                  if (target.textFilter) {
-                    var text_extract_pattern = new RegExp(self.replaceTemplateVars(target.textFilter, options.scopedVars));
-                    var result = text_extract_pattern.exec(lastvalue);
-                    if (result) {
-                      if (target.useCaptureGroups) {
-                        result = result[1];
-                      } else {
-                        result = result[0];
-                      }
-                    }
-                    deferred.resolve(result);
-                  } else {
-                    deferred.resolve(lastvalue);
-                  }
+                var textItemsPromises = _.map(items, item => {
+                  return self.zabbixAPI.getLastValue(item.itemid);
                 });
+                return self.q.all(textItemsPromises)
+                  .then(result => {
+                    return _.map(result, (lastvalue, index) => {
+                      var extractedValue;
+                      if (target.textFilter) {
+                        var text_extract_pattern = new RegExp(self.replaceTemplateVars(target.textFilter, options.scopedVars));
+                        extractedValue = text_extract_pattern.exec(lastvalue);
+                        if (extractedValue) {
+                          if (target.useCaptureGroups) {
+                            extractedValue = extractedValue[1];
+                          } else {
+                            extractedValue = extractedValue[0];
+                          }
+                        }
+                      } else {
+                        extractedValue = lastvalue;
+                      }
+                      return {
+                        target: items[index].name,
+                        datapoints: [[extractedValue, to * 1000]]
+                      };
+                    });
+                  });
               } else {
-                deferred.resolve(null);
+                return self.q.when([]);
               }
-              return deferred.promise.then(function(text) {
-                return {
-                  target: target.item.name,
-                  datapoints: [[text, to * 1000]]
-                };
-              });
             });
         }
       }
diff --git a/src/datasource-zabbix/queryProcessor.service.js b/src/datasource-zabbix/queryProcessor.service.js
index c56fda9..35d2401 100644
--- a/src/datasource-zabbix/queryProcessor.service.js
+++ b/src/datasource-zabbix/queryProcessor.service.js
@@ -14,13 +14,13 @@ angular.module('grafana.services').factory('QueryProcessor', function($q) {
     /**
      * Build query in asynchronous manner
      */
-    build(groupFilter, hostFilter, appFilter, itemFilter) {
+    build(groupFilter, hostFilter, appFilter, itemFilter, itemtype) {
       var self = this;
       if (this.cache._initialized) {
-        return this.$q.when(self.buildFromCache(groupFilter, hostFilter, appFilter, itemFilter));
+        return this.$q.when(self.buildFromCache(groupFilter, hostFilter, appFilter, itemFilter, itemtype));
       } else {
         return this.cache.refresh().then(function() {
-          return self.buildFromCache(groupFilter, hostFilter, appFilter, itemFilter);
+          return self.buildFromCache(groupFilter, hostFilter, appFilter, itemFilter, itemtype);
         });
       }
     }
@@ -64,8 +64,8 @@ angular.module('grafana.services').factory('QueryProcessor', function($q) {
     /**
      * Build query - convert target filters to array of Zabbix items
      */
-    buildFromCache(groupFilter, hostFilter, appFilter, itemFilter, showDisabledItems) {
-      return this.getItems(groupFilter, hostFilter, appFilter, showDisabledItems)
+    buildFromCache(groupFilter, hostFilter, appFilter, itemFilter, itemtype, showDisabledItems) {
+      return this.getItems(groupFilter, hostFilter, appFilter, itemtype, showDisabledItems)
         .then(items => {
           return getByFilter(items, itemFilter);
         });
@@ -108,7 +108,7 @@ angular.module('grafana.services').factory('QueryProcessor', function($q) {
         });
     }
 
-    getItems(groupFilter, hostFilter, appFilter, showDisabledItems) {
+    getItems(groupFilter, hostFilter, appFilter, itemtype, showDisabledItems) {
       var self = this;
       return this.getHosts(groupFilter)
         .then(hosts => {
@@ -133,7 +133,7 @@ angular.module('grafana.services').factory('QueryProcessor', function($q) {
         .then(apps => {
           if (apps.appFilterEmpty) {
             return self.cache
-              .getItems(apps.hostids, undefined)
+              .getItems(apps.hostids, undefined, itemtype)
               .then(items => {
                 if (showDisabledItems) {
                   items = _.filter(items, {'status': '0'});
@@ -143,7 +143,7 @@ angular.module('grafana.services').factory('QueryProcessor', function($q) {
           } else {
             var appids = _.map(apps, 'applicationid');
             return self.cache
-              .getItems(undefined, appids)
+              .getItems(undefined, appids, itemtype)
               .then(items => {
                 if (showDisabledItems) {
                   items = _.filter(items, {'status': '0'});
diff --git a/src/datasource-zabbix/zabbixAPI.service.js b/src/datasource-zabbix/zabbixAPI.service.js
index 3f6ea94..df8bcf4 100644
--- a/src/datasource-zabbix/zabbixAPI.service.js
+++ b/src/datasource-zabbix/zabbixAPI.service.js
@@ -152,7 +152,7 @@ function ZabbixAPIService($q, alertSrv, zabbixAPICoreService) {
      * @param  {String} itemtype 'num' or 'text'
      * @return {[type]}          array of items
      */
-    getItems(hostids, appids, itemtype='num') {
+    getItems(hostids, appids, itemtype) {
       var params = {
         output: [
           'name', 'key_',
@@ -163,10 +163,7 @@ function ZabbixAPIService($q, alertSrv, zabbixAPICoreService) {
         ],
         sortfield: 'name',
         webitems: true,
-        filter: {
-          // Return only numeric items by default
-          value_type: [0, 3]
-        },
+        filter: {},
         selectHosts: [
           'hostid',
           'name'
@@ -178,6 +175,10 @@ function ZabbixAPIService($q, alertSrv, zabbixAPICoreService) {
       if (appids) {
         params.applicationids = appids;
       }
+      if (itemtype === 'num') {
+        // Return only numeric metrics
+        params.filter.value_type = [0, 3];
+      }
       if (itemtype === 'text') {
         // Return only text metrics
         params.filter.value_type = [1, 2, 4];
diff --git a/src/datasource-zabbix/zabbixCache.service.js b/src/datasource-zabbix/zabbixCache.service.js
index fe5e593..3092b08 100644
--- a/src/datasource-zabbix/zabbixCache.service.js
+++ b/src/datasource-zabbix/zabbixCache.service.js
@@ -102,9 +102,9 @@ angular.module('grafana.services').factory('ZabbixCachingProxy', function($q, $i
         });
     }
 
-    getItems(hostids, appids) {
+    getItems(hostids, appids, itemtype) {
       var self = this;
-      return this.getItemsOnce(hostids, appids)
+      return this.getItemsOnce(hostids, appids, itemtype)
         .then(items => {
           self._items = _.union(self._items, items);
           return items;