Battery Charger, Product Type Battery Charger, Features Single-Unit Charger with Datalink, Series Ventis MX4, Ventis Pro18, For Battery Chemistry Lithium Ion, For Number of Units 1, For Use With Industrial Scientific Ventis Gas Detectors, Includes PC Connection Cable, Software, Overall Height 2.83 in, Overall Length 4.31 in, Overall Width 4.08 in