Visakha Elevators committed to the safety of our valueable customers. In that way we are integrating the latest technlogy security devices with the lift assembling parts. The use of ARD box is, when any interrupt in power supply while lift in running, then the cabin reaches to the nearest floor leve and doors will open. Then passengers can safely survive in such situations. The ARD box comes with power battery and lasts upto 6 months.