data loggers
alternative label: loggers
related: geophysical equipment
broader: recorder
preferred label: واقعه‌نگار داده‌ای @fa
type: Concept

geophysical equipment
preferred label: تجهیزات زمین‌فیزیکی @fa
type: Concept
related: data loggers

recorder
preferred label: دستگاه ضبط صوت @fa
type: Concept
narrower: data loggers