HDL-MPTB01RF.48 RF Intelligent Door Bell and Access Reader RF Intelligent Door Bell and Access Reader, Glass Plate, Door Bell and Card reader, NEED TO WORK WITH HDL-MPPI.48 Parameters Model HDL-MPTB01RF.48 SKU 421091 Bus Power 25 mA Width 86 mm Height 86 mm Depth 11 mm Weight 79 g Material CustomOne CustomTwo CustomThree CustomFour CustomFive Discount category A 2 pcs in stock in stock in stock You can buy these goods through registered HDL partner. Question to product