Fluke 709H Specifications : Functions mA source, mA simulate, mA read, mA read/loop power, and volts read Ranges mA (0 to 24mA) and Volts (0 to 30VDC) Resolution 1 µA on mA ranges and 1 mV on voltage range Accuracy 0.01% +/- 2 counts, all ranges (@23° +/- 5°C) Operating Temperature Range -10 to 55 °C (14 to 131°F) Humidity Range 10 to 95% non-condensing Stability 20 ppm of F.S. /°C from -10 to 18°C and 28 to 55°C Display 128 x 64 pixels, LCD Graphic w/backlight, .34 high digits Power 6 AAA alkaline Battery Life 40 hours typical Loop Compliance Voltage 24VDC @ 20mA Over-Voltage Protection 240 VAC Overload Current Protection 28 mA DC Dimensions (L x W x D) 15 cm x 9 cm x 3 cm (6 x 3.6 x 1.3) Weight 0.3 kg (9.5 ounces)