The Testboy 40 Plus offers a user-friendly design and a rugged housing that ensures long life. The two-pole voltage tester indicates direct and alternating voltages in the range of 6 to 400V. In addition, the device is equipped with a phase finder. * User friendly and robust * Voltage range up to 400V AC / DC * Phase search against the protective conductor * Detecting DC and AC voltage from 6 to 400V * Display by 8 LEDs * Phase search to the protective earth * Power supply by device under test * 5 year manufacturer´s warranty * Manufacturer's part: Testboy 40 https://elecena.pl/product/27719672/testboy-100-20049-0280-40-plus-voltage-tester 2025-01-19 https://elecena.pl/product/27719672/testboy-100-20049-0280-40-plus-voltage-tester 2026-06-07 https://elecena.pl/product/27719672/testboy-100-20049-0280-40-plus-voltage-tester 2026-07-23 https://elecena.pl/product/27719672/testboy-100-20049-0280-40-plus-voltage-tester 2026-09-09