Amprobe DM73C [2727739] Pen Style Digital Multimeter. The Amprobe DM73C is a pen style multimeter with built-in test probe for one-handed operation in hard to reach places. The DM73C is UL, cUL, and EN61010-1 certified for Cat II 600 V and Cat III 300 V. It is recommended for use with local level power distribution, appliances, and portable equipment where only smaller transient overvoltages may occur, and not for primary supply lines, overhead lines and cable systems. The Amprobe DM73C tests AC and DC voltage to 600 V with a DC accuracy of 0.5%. The meter also measures resistance to 34 MΩ and includes a diode test and continuity beeper. Measured values are displayed on the 3400-count digital display plus analog bargraph.