The Kewtech KT63DL Digital Multifunction Tester is a handheld device designed for various test and measurement functions such as AC/DC voltage, AC/DC current, continuity test, and data hold feature. It has a digital display with backlight for easy visibility and is rated IP54 for protection against dust and water. This 5-in-1 calibrated tester also includes features like battery door access for convenient replacement when needed. Ideal for a range of applications, this versatile tool offers efficient and accurate measurements in a compact and user-friendly form factor.