Type KTS442R Telescope Size of Object Lenz 45mm Image Erect Magnification 30× Filed View 1°30\\' Distance Measurement 1 Prism 5000m 3 Prism 8000m No Prism 350m Accuracy with Prism ±(2mm+2ppm×D) Accuracy Prismless ±(5mm+3ppm×D) Angel Measurement Accuracy 2\\" Method Absolute Encoder Adapter Type Liquid Electric Range ±4\\' Optical Device on Point Foucs Range 0.5m~∞ Image Erect Magnification 3× Filed View 5° Accuracy ±1mm Display 8 lines Dual Side LCD Power Battery NI-H Continuous Measure Time 10 Hour Communication Connector RS232C Momery Capacity 100000 Points Working Temperature -20°~+50° Net Weight 5.8K