The National Instruments NI-5191 is a high-performance Differential Active Oscilloscope Probe designed for advanced measurement applications. With a bandwidth of 800 MHz and a 10 X attenuation, it accommodates a voltage range of -30 V to 30 V, making it suitable for a variety of tasks in education, manufacturing, digital design, and component validation. This probe is compatible with high-speed digitizers such as the NI-5152, NI-5153, and NI-5154, as well as with standalone oscilloscopes featuring 50 Ω BNC inputs. The NI-5191 can be powered directly from a host PC or embedded controller via USB or can utilize a 9 V alkaline battery. If opting for an alternative power supply, users must ensure it is UL listed, ITE labeled LPS and complies with local safety standards. It is essential that the probe warms up for at least 20 minutes prior to use and is operated indoors only. The device adheres to safety standards IEC 61010-031 and EN 61010-031, promoting safe use in electrical measurements. For maintenance, the probe should be cleaned with a soft, dry cloth, avoiding immersion in liquids and harsh cleaning agents. Apex Waves offers continued support for the NI-5191, which will transition to the NI Maintenance phase on December 30, 2023. For pricing and further inquiries, prospective customers can contact a sales representative for a quote.