The 27/FM is a rugged, true rms digital multimeter combining the precision of a 3200 count digital LCD display with the speed and versatility of an analog bar graph. It is supplied with a protective transit case containing the multimeter, 80K-6 high voltage probe, test leads, and operators manual. The high voltage probe extends the voltage measurement range to 6000 Volts. Standard measurements include ac/dc voltage and current, ohms, conductance, audible continuity, and diode test. The 27/FM imeets MIL-T-28800, Type 2, Class 2, Style A specifications for vibration, humidity, and water resistance. It operates from a single 9V battery with an expected life of 750 hours.