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

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

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