Sokkia Strobe Prism with Target
This flashing strobe prism is ideal for use in adverse weather conditions, night surveying, locating gear, tunneling, and mining. Designed to be used in all offsets. All electronics and the power supply are housed within the prism canister. Includes all-metal tilting target. Power: one CR1/3N battery (included). Battery life: 7 days (24 hours) under normal conditions.