diff --git a/modules/ui/src/app/pages/devices/components/device-form/device-form.component.html b/modules/ui/src/app/pages/devices/components/device-form/device-form.component.html
index e8ce4ac98..11f87ff33 100644
--- a/modules/ui/src/app/pages/devices/components/device-form/device-form.component.html
+++ b/modules/ui/src/app/pages/devices/components/device-form/device-form.component.html
@@ -19,21 +19,41 @@
   [class.device-form-create]="!data.device"
   [class.device-form-edit]="data.device">
   <span class="device-form-title">{{ data.title }}</span>
-  <mat-form-field appearance="outline">
+  <mat-form-field appearance="outline" class="manufacturer-field">
     <mat-label>Device Manufacturer</mat-label>
     <input
       class="device-form-manufacturer"
       formControlName="manufacturer"
       matInput />
     <mat-hint>Please enter device manufacturer name</mat-hint>
+    <mat-error
+      *ngIf="manufacturer.hasError('invalid_format')"
+      role="alert"
+      aria-live="assertive">
+      <span
+        >Please, check. The manufacturer name must be a maximum of 64
+        characters. Only letters, numbers, and accented letters are
+        permitted.</span
+      >
+    </mat-error>
     <mat-error *ngIf="manufacturer.errors?.['required']">
       <span>Device Manufacturer is <strong>required</strong></span>
     </mat-error>
   </mat-form-field>
-  <mat-form-field appearance="outline">
+  <mat-form-field appearance="outline" class="model-field">
     <mat-label>Device Model</mat-label>
     <input class="device-form-model" formControlName="model" matInput />
     <mat-hint>Please enter device name</mat-hint>
+    <mat-error
+      *ngIf="model.hasError('invalid_format')"
+      role="alert"
+      aria-live="assertive">
+      <span
+        >Please, check. The device model name must be a maximum of 64
+        characters. Only letters, numbers, and accented letters are
+        permitted.</span
+      >
+    </mat-error>
     <mat-error *ngIf="model.errors?.['required']">
       <span>Device Model is <strong>required</strong></span>
     </mat-error>
diff --git a/modules/ui/src/app/pages/devices/components/device-form/device-form.component.scss b/modules/ui/src/app/pages/devices/components/device-form/device-form.component.scss
index 96903ccc5..831f9907a 100644
--- a/modules/ui/src/app/pages/devices/components/device-form/device-form.component.scss
+++ b/modules/ui/src/app/pages/devices/components/device-form/device-form.component.scss
@@ -34,6 +34,13 @@ $device-form-min-width: 285px;
   overflow: auto;
 }
 
+.manufacturer-field,
+.model-field {
+  &::ng-deep.mat-mdc-form-field-subscript-wrapper:has(mat-error) {
+    height: 40px;
+  }
+}
+
 .device-form-title {
   color: $grey-800;
   font-size: 22px;
diff --git a/modules/ui/src/app/pages/devices/components/device-form/device-form.component.spec.ts b/modules/ui/src/app/pages/devices/components/device-form/device-form.component.spec.ts
index 83d869277..4ffbb402e 100644
--- a/modules/ui/src/app/pages/devices/components/device-form/device-form.component.spec.ts
+++ b/modules/ui/src/app/pages/devices/components/device-form/device-form.component.spec.ts
@@ -221,6 +221,29 @@ describe('DeviceFormComponent', () => {
         expect(errors).toBeNull();
       });
     });
+
+    it('should have "invalid_format" error when field does not satisfy validation rules', () => {
+      [
+        'very long value very long value very long value very long value very long value very long value very long value',
+        'as&@3$',
+      ].forEach(value => {
+        const model: HTMLInputElement = compiled.querySelector(
+          '.device-form-model'
+        ) as HTMLInputElement;
+        model.value = value;
+        model.dispatchEvent(new Event('input'));
+        component.model.markAsTouched();
+        fixture.detectChanges();
+
+        const modelError = compiled.querySelector('mat-error')?.innerHTML;
+        const error = component.model.hasError('invalid_format');
+
+        expect(error).toBeTruthy();
+        expect(modelError).toContain(
+          'The device model name must be a maximum of 64 characters. Only letters, numbers, and accented letters are permitted.'
+        );
+      });
+    });
   });
 
   describe('device manufacturer', () => {
@@ -240,6 +263,30 @@ describe('DeviceFormComponent', () => {
         expect(errors).toBeNull();
       });
     });
+
+    it('should have "invalid_format" error when field does not satisfy validation', () => {
+      [
+        'very long value very long value very long value very long value very long value very long value very long value',
+        'as&@3$',
+      ].forEach(value => {
+        const manufacturer: HTMLInputElement = compiled.querySelector(
+          '.device-form-manufacturer'
+        ) as HTMLInputElement;
+        manufacturer.value = value;
+        manufacturer.dispatchEvent(new Event('input'));
+        component.manufacturer.markAsTouched();
+        fixture.detectChanges();
+
+        const manufacturerError =
+          compiled.querySelector('mat-error')?.innerHTML;
+        const error = component.manufacturer.hasError('invalid_format');
+
+        expect(error).toBeTruthy();
+        expect(manufacturerError).toContain(
+          'The manufacturer name must be a maximum of 64 characters. Only letters, numbers, and accented letters are permitted.'
+        );
+      });
+    });
   });
 
   describe('mac address', () => {