Bluetooth® Smartphone Programmable Control Unit

Control your WarmUp system

Operate your DEFA system with your mobile phone

Art. nr: 440053


A complimentary component in the WarmUp Assembly, it is available either with an in-cabin control unit (Futura) or with a Bluetooth (Smartphone) connectivity. It allows you to separately control the heating system from the charging function and to program your heating system so your vehicle is ready when you need it, without wasting electricity or using fuel. The Bluetooth solution offers the convenience of connecting your smartphone device at no additional cost (no subscription is required). Above all it alerts you if you have forgotten to unplug the cable before you start driving (smartphone must be paired to the hub).


  • Auto heating time based on temperature
  • 1, 2, 3, and 4 hour heating time
  • Set two independent pick-up times per day
  • Program day of the week
  • Show next pick up time
  • Heating components ON/OFF
  • Battery voltage level monitoring
  • Outside temperature
  • Compatible with Android 4.4+, iOS 9+, Windows
  • Oversleep function that keeps the vehicle heated for 2 hours after the set departure time

*Some features requires Bluetooth® connection.

Technical description

DEFA AS conforms to the requirements of both ISO 9001- 2008, ISO 14001:2004 and OHSAS 18001:2007. In addition, our engine heaters and cables conform to the requirements of ISO/TS 16949:2002.

Operating temperature
IP rating
-40°C / +80°C
8-32V DC
HWD: 112/46/24mm
Bluetooth Smart/2,4GHz
Inside and around the car
35g (Bluetooth Hub), 150g (Cable mat)