Agilent / HP / Keysight 34904A

This unit consists of a three-slot mainframe with a built in 6 1/2 digit digital multimeter.

Each channel can be configured independently to measure one of 11 different functions without the added cost or hassles of signal-conditioning accessories.

Choose from eight optional plug-in modules to create a compact data logger, full featured data acquisition system or low-cost switching unit.

On module screw terminal connections eliminate the need for terminal blocks and a unique relay maintenance feature counts every closure on every switch for easy, predictable relay maintenance