The PicoScope 4444 (PQ088) is a high-resolution differential oscilloscope, made by PC scope experts Pico Technology, that offers four true differential input channels and an available range of dedicated accessories for making measurements from millivolts to 1000V CAT III applications. It has been designed specifically for making accurate voltage waveform measurements on circuits that are not ground-referenced, avoiding the dangers of short circuits. The PQ088 is not available on its own - it must be purchased with a D9 accessory.

The PicoScope 4444 can facilitate differential voltage measurements in the presence of common-mode signals, with 14-bit resolution and 20MHz bandwidth on all four differential channels, saving the results to a 256MSa waveform capture memory. It is ideal for the precise analysis of complex waveforms ranging from biomedical sensors to current probes and 1000 V CAT III power distribution circuits when fitted with the correct probes.

The PicoScope 4444 offers a choice of 1:1 low-voltage and 25:1 1000V CAT III probes to address a wide range of situations. The oscilloscope has an intelligent probe interface that can provide power for PicoConnect voltage probes, current probes such as Hall effect DC/AC, and Rogowski coil type active current probes. The scope automatically detects the compatible probe connected and sets the corresponding units and vertical settings in the free PicoScope 6 software.