diff --git a/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.html b/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.html
index cb1f7afb06..3468442b50 100644
--- a/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.html
+++ b/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.html
@@ -41,6 +41,9 @@
       <mat-error *ngIf="alarmFormGroup.get('alarmType').hasError('required')">
         {{ 'device-profile.alarm-type-required' | translate }}
       </mat-error>
+      <mat-error *ngIf="alarmFormGroup.get('alarmType').hasError('unique')">
+        {{ 'device-profile.alarm-type-unique' | translate }}
+      </mat-error>
       <mat-hint *ngIf="!disabled"
                 innerHTML="{{ 'device-profile.alarm-type-pattern-hint' | translate }}"></mat-hint>
     </mat-form-field>
diff --git a/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.ts b/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.ts
index cf4a55e6d8..fc0cee9639 100644
--- a/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.ts
+++ b/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.ts
@@ -133,6 +133,19 @@ export class DeviceProfileAlarmComponent implements ControlValueAccessor, OnInit
   }
 
   public validate(c: FormControl) {
+    if (c.parent) {
+      const alarmType = c.value.alarmType;
+      const profileAlarmsType = [];
+      c.parent.getRawValue().forEach((alarm: DeviceProfileAlarm) => {
+          profileAlarmsType.push(alarm.alarmType);
+        }
+      );
+      if (profileAlarmsType.filter(profileAlarmType => profileAlarmType === alarmType).length > 1) {
+        this.alarmFormGroup.get('alarmType').setErrors({
+          unique: true
+        });
+      }
+    }
     return (this.alarmFormGroup.valid) ? null : {
       alarm: {
         valid: false,
diff --git a/ui-ngx/src/app/modules/home/components/profile/device-profile.component.ts b/ui-ngx/src/app/modules/home/components/profile/device-profile.component.ts
index d30c8b47b9..8c521dcd77 100644
--- a/ui-ngx/src/app/modules/home/components/profile/device-profile.component.ts
+++ b/ui-ngx/src/app/modules/home/components/profile/device-profile.component.ts
@@ -38,7 +38,7 @@ import {
 } from '@shared/models/device.models';
 import { EntityType } from '@shared/models/entity-type.models';
 import { RuleChainId } from '@shared/models/id/rule-chain-id';
-import {ServiceType} from "@shared/models/queue.models";
+import { ServiceType } from '@shared/models/queue.models';
 
 @Component({
   selector: 'tb-device-profile',
@@ -176,10 +176,10 @@ export class DeviceProfileComponent extends EntityComponent<DeviceProfile> {
       transportConfiguration: entity.profileData?.transportConfiguration,
       alarms: entity.profileData?.alarms,
       provisionConfiguration: deviceProvisionConfiguration
-    }});
-    this.entityForm.patchValue({defaultRuleChainId: entity.defaultRuleChainId ? entity.defaultRuleChainId.id : null});
-    this.entityForm.patchValue({defaultQueueName: entity.defaultQueueName});
-    this.entityForm.patchValue({description: entity.description});
+    }}, {emitEvent: false});
+    this.entityForm.patchValue({defaultRuleChainId: entity.defaultRuleChainId ? entity.defaultRuleChainId.id : null}, {emitEvent: false});
+    this.entityForm.patchValue({defaultQueueName: entity.defaultQueueName}, {emitEvent: false});
+    this.entityForm.patchValue({description: entity.description}, {emitEvent: false});
   }
 
   prepareFormValue(formValue: any): any {
diff --git a/ui-ngx/src/assets/locale/locale.constant-en_US.json b/ui-ngx/src/assets/locale/locale.constant-en_US.json
index 0b6ee1deeb..27e504d6ee 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -909,6 +909,7 @@
         "edit-alarm-rule": "Edit alarm rule",
         "alarm-type": "Alarm type",
         "alarm-type-required": "Alarm type is required.",
+        "alarm-type-unique": "Alarm type must be unique within the device profile alarm rules.",
         "alarm-type-pattern-hint": "Alarm type pattern, use <code>${metaKeyName}</code> to substitute variables from metadata",
         "create-alarm-pattern": "Create <b>{{alarmType}}</b> alarm",
         "create-alarm-rules": "Create alarm rules",