: Auto-ranging from 12V to 80V DC (nominal), with an absolute range of 9V to 100V DC. Operating Temperature :
: The Battery Discharge Indicator can be adjusted to match the specific discharge curve of your battery type (Lead Acid, Li-ion, etc.). curtis 3501 manual
: 5 front-panel push buttons for user navigation and programming. Installation and Wiring Guide : Auto-ranging from 12V to 80V DC (nominal),