Chauvin Arnoux OX5022B 2-Channels Analog, 20MHz Metrix Portable Oscilloscope. The Chauvin Arnoux Hand scope is an Oscilloscope which is shockproof, IP54 and fits comfortably in one hand. This ergonomic instrument is also equipped with a TFT colour screen and LED backlighting for precise data display. To make it simpler to use, intuitive pictograms and integrated multilingual help are available at all times.