General tools ts04 toolsmart digital multimeter features: 2016 protool award winner quickly save your readings to the free toolsmart app on your phone turn the dial to easily read ac/dc voltage, ac/dc current, resistance, temperature, and more conveniently use your phone as a second screen for easier visibility in dark environments and to simplify two person jobs organize your findings by project to increase your productivity integrated non-contact voltage ncv detector etl certified safe for cat iii 600v use features: one pair of double-insulated test leads bead thermocouple probe and plug adapter 9v battery user’s manual