Accessories for your perfectly minimal iPhone? What if they could help you measure radiation in the air, or if your food is organic? These small, well-designed wood and ivory tools will be available in December, and each has a special ability. One measures and displays radiation levels in your vicinity, noting when to be alarmed. Another detects nitrates and synthetic fertilizers in food, letting you know if its organic or not. And one measures EMF in your environment, while the other senses humidity levels. All show in visible form these invisible concerns.