... positioning applications, such as topo and construction layout.Features:1. Economical, value priced measuring solution2. Rugged,durable,water ... profile sensor reading type Compensating Range ±3' Correction Unit 1 arc sec, N/AComputer Unit Display 2 screen, dot ... approximate battery life 9 including distance measurement,40 Angle measurement GTS-102N Series: Accuracy2,2+2ppm, Measuring Range2km/1NPGTS- ...