diff --git a/interface/src/app/main/deviceValue.ts b/interface/src/app/main/deviceValue.ts
index 9078f0334..e03bf712c 100644
--- a/interface/src/app/main/deviceValue.ts
+++ b/interface/src/app/main/deviceValue.ts
@@ -36,7 +36,7 @@ export function formatValue(
     }
     return (
       (value as string) +
-      (uom === undefined || uom === 0 ? '' : ' ' + DeviceValueUOM_s[uom])
+      (value === '' || uom === undefined || uom === 0 ? '' : ' ' + DeviceValueUOM_s[uom])
     );
   }