Microdevices and methods for packaging microdevices. The liquid crystal panel 20 has a plurality of optical sensor elements 30 that detect the intensity of received infrared light, and the backlight 10 has an infrared LED 12 that emits infrared light. In a particular embodiment the fungicide detected is thiabendazole. A pressing claw presses the stop member in the other of the rotating directions in a state where the second front door and the side door are closed.