DC Digital Multimeter w/ Alarm * Displays amperage from -500 to +500 Amps * Displays voltage from 0 to 60 Volts in 0.01 Volt increments * High and low voltage, audio and visual alarms * Standard meter operates in negative side of circuit only. Shunt Shifter required for positive side installation such as alternators * 3 levels of display brightness * Programmable sleep mode blanks display for power conservation * Splashproof front * Includes 500 Amp shunt * Applicable for 12, 24, 32, 36, and 42 Volt DC systems Warning [https://productimageserver.com/prop65/6pt.png]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 [http://P65Warnings.ca.gov].