A few other operational differences between the III and V.
III measures up to 5uF, one level backlight, defaults to DC for current measurements, 4000 count, hi-res 20,000 count is only 1 update/sec, getting into hi-res "reboot/reset" the entire meter.
V measures up to 9999uF, two level backlight, defaults to AC for current measurements, 6000 count, hi-res 20,000 count is 4 updates/sec, getting into hi-res does NOT "reboot/reset" the entire meter.