TK 1004 E 
    Environmentally friendly with electric motor
    The Putzmeister Thomkatt TK 1004 E is the compact concrete pump in
  the 1000 series, equipped with an environmentally friendly electric
  motor and the latest Ergonic ® 3 PS control. With the TK 1004 E, it is
  possible to deliver normal concrete with a grain size of up to
  1.25" (32 mm).