DC Digital VoltmeterDisplays voltage from 0 to 60 Volts 3 levels of display brightness Splashproof front Manual sleep mode blanks display for power conservation Applicable for 12, 24, 32, 36, and 42 Volt DC systems WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.