Procuct features and uses
1, Accurate measurement, stable performance, safe and reliable.
2, Laser ranging, horizontal Angle, measuring pen, a top 3, complete functions, easy to carry 
3, Color screen display, user-friendly interactive interface, easy to operate.
4, Instead of tape measure, one person operation, can be used in topographic survey, engineering survey, house decoration survey, bridged construction survey, water level monitoring, etc. It can also distinguishd between positive and negative sockets or whether they are energized.