... suddenly power off. No prism Ranging technologySlender laser beam precise rangingü Hi-Target ZTS-120/ ... .5m instrument heightPower supplyBattery TypeLithium-IonVoltage/CapacityZBA-400:7.4V 3000mAhOperating time withZBA-40016 hours24hous( ... , handheld GPS, Rebound tester, laser vertical collimator, laser rangefinder, laser swinger, laser line marking, laser telescope rangefinder,etc. Now we are looking ...