Heavy Acceleration Particle Measuring Device

The Heavy Acceleration Particle Measuring Device (重加速粒子測定器) is a backpack/metal-detector-like devices developed by Rinna Sawagami for the Special Investigation Unit's use to detect presence of Heavy Acceleration particles in a certain area that affected by Heavy Accelerations. This gadget is otherwise known as Pikopiko (ピコピコ) due to the blinking noises it made. So far, only two of these presents, both used by Shinnosuke Tomari and Kiriko Shijima.