Sokkia CX 105 5 Second Reflectorless Total Station 2140342 5-second accuracy 10,000-point internal memory 1,640 foot range Long-range Bluetooth Laser plummet features five levels of brightness Coaxial laser pointer USB and RS232 serial port Advanced security and maintenance with TSshield Trigger key for taking measurements quickly 36-hour battery life Water resistant and dustproof to IP-66 Dual graphic LCD display