If you are suffering from particular allergy, you should check your food before eating. The problem is, sometimes, we can’t identify the ingredients in the food. A-Check is a device that can help these people to have safer meals by testing the food for allergen. Choose and insert the kit for the allergy you have, and push the tip. A sharp core will appear. Touch the food with the core, if it turns red, then it’s not safe for you to eat the food.