The Refine A7 Apex Locator is a advanced dental tool for root canal measurement, featuring 6th gen multi-frequency tech for up to 98% accuracy, a foldable 5.1" color LCD for multi-angle use, voice alarms, an 850mAh battery (6hr life), Type-C charging, and autoclavable parts (clip, hook, probe) for hygiene, offering precise apical location with anti-interference for better endodontic treatment.