3¾ digit liquid crystal display (LCD) with a maximum reading of 3999.
Automatic, positive implied, negative polarity indication.
(OL) or (-OL) is displayed.
is displayed when the battery.
voltage drops below the operating level.
Measurement rate :
3 times per second, nominal.
0°C to 50°C at < 70% relative humidity.
-20°C to 60°C, 0 to 80% R.H. with battery.