MasterView Read-outRemote panel for reading the charge status of your battery charger, including error notifications.General specificationsDisplay/read-out: 7 LEDsDimensions, hxwxd: 2.4 x 2.6 x 0.0 inchWeight: 0.2 lb Technical specificationsMasterBus connection: yesPower: via MasterBusPower consumption: 144 m W Protection degree: IP21WARNING: 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.