Measuring range: 300-20000m range accuracy: ± 3m (0.3m) display accuracy: 1m (0.1m) distance resolution: 50m working mode: 5 times / minute visual magnification: 10 times pupil diameter: 5.0mm pupil distance: 15mm weight: 1.39Kg interface: RS232o size: 88mm × 123mm × 156mm display: inside Eyepiece internal display polymer lithium battery power supply, ≥ 500 times, can also be powered according to customer requirements.