The Lisle Digital 3-49V Circuit Tester - 28830 is the perfect tool for testing and troubleshooting electrical circuits. This tester features a 3-in-1 design for testing for voltage, current and continuity. The digital display provides precise readings in volts, amps and ohms. The tester also features a built-in LED light for use in dark or hard-to-reach areas. The ergonomic design and comfort grip handle make it easy to use and handle. The Lisle Digital Circuit Tester 3 is a must-have for any professional or DIY electrician.