The 177 Digital Multimeter features extended capabilities for the most sensitive bench instrument. 20,000 count accuracy with a 4 1/2-digit display; resolution of 1 MicroV/digit and 1 mohm/digit; DC: 20 mV to 1200 V (6 ranges); AC: 20 mV to 100 V (5 ranges); 20 ohms to 20 Mohms; 20 MicroA to 2000 mA (6 ranges).