No driver, it is now inside the pump, no alarm as a result. Instead the pumps shuts off until reset by disconnecting the power. In place of the driver is a junction block where you connect the controller and power supply. The power supply is a standard lap top type power supply switchable from 15V - 24V. It replaces the big copper coil. On 15V the pump is like a 6000, on 24V it is like a 6100. The voltage is higher as it now uses DC, older pumps were AC with a conversion to DC in the driver. This one pump replaces both models, MSRP is $319.95