Gardner Bender GET-3202 Twin Probe Circuit Tester, 5 to 50 V, Functions: Voltage, Red

This low voltage tester tests for AC/DC Voltage from 5 to 50 VAC/VDC, 50 to 60 Hz. The indicator glows when voltage is present and brightens as voltage increases. Applications include testing low volt outdoor lighting, low volt control panels, doorbells, alarm systems and automotive 12 VDC and 36 VDC.