USB digital multimeter

Signametrics has released the SMU2055 USB digital multimeter. At 227 g and dimensions of 13 x 18 x 3 cm, it is claimed to be a 90% reduction in size and power of benchtop DMMs.

The unit is powered directly from the USB connection and consumes 1½ W.

Plug-and-play software installation is compatible with a wide range of software packages.

Features include: DC V, four ranges; DC current, four ranges; AC V, four ranges, true RMS; AC current, four ranges, true rms; ohms, 2-wire and 4-wire, six ranges; diode test at five user-selectable currents, 1 µA to 1 mA; up to 250 readings per second; fast range and function changes.

The meter has ±2,400,000 counts. This gives 10 times the resolution for a wide range of inputs.

Measurements can be displayed on the computer monitor using a familiar-looking DMM panel. The DMM can also be used automatically with a user-generated control program, with one of many compatible software packages and operating systems.

Supported packages include C++, Visual Basic, .Net, LabVIEW, LabWindows/CVI, C#, Delphi, Mat Lab, VBA, Word, Excel, ATEasy and HPVee. Operating systems include all Windows, 32-bit and 64 bit, Linux and TenAsys’ Intime.