Multimeters feature 0.09% accuracy, 6000-count resolution with auto and manual hold function. Other features include min., max., avg. readings, true RMS, AC voltage and current. 175 Multimeter (No. 81064) is a 1000V true RMS multimeter. 177 Multimeter (No. 81065) includes a backlight for measurements in low-visibility environments. 179 Multimeter (No. 81066) measures temperature in °C and °F; thermocouple included.