Description

Main feature
① The use of high-capacity 3V lithium battery, the battery is more durable, but not guaranteed;
② Clear any position, to facilitate the relative measurement and absolute measurement conversion;
(3) Metric and Inch conversion at any position;

主要特点
① 使用大容量3V锂电池,电池更耐用,更不保；
② 任意位置清零，便于相对 测量与绝对测量转换；
③ 任意位置公制与英制转换;