PROFITEST MASTER is a high-precision test instrument designed for measuring the effectiveness of protective measures in electrical systems. The design incorporates an overall ergonomic concept by emphasizing the manufacturer’s demand for high quality. The top panel of the PROFITEST MASTER can be adjusted within a range of 270° by snap-detenting hinge. This flexibility assures a direct view of the display panel regardless of the instrument’s position – on a table or suspended around the neck. A high-quality rubber cover protects the instrument effectively against the stresses of daily use and improves the instrument’s grip.