The Agilent 1661ES adds an integrated oscilloscope to the Agilent 1661E product. Some of the tougher hardware problems can be found only with the digital triggering capabilities of a logic analyzer and can only be solved with the analog resolution of an oscilloscope. That's why the ES model comes with a built-in, 500 MHz, 2 GS/s oscilloscope that can be triggered by the logic analyzer. Designers can view both analog and digital signals simultaneously on the integrated display of the logic analyzer. Now you can see what the bus lines really look like at critical moments. The compact, all-in-one design saves space on a crowded lab bench.