Strong enough to move gates up to 2 Ton |Taking intelligence to the next level |Easy drop-in replacement for existing A10 sites |SMART technology makes the D20 SMART and intelligent as it is solid |Smooth and strong |Hall Effect technology keeps track of every trigger |Uninterrupted convenience with 24V battery backup |SMART universal controller compatible with D10 Smart motors |Incl 2 x 12v-7.2Ah SLA Battery’s