Gecma Components electronic GmbH Heinrich- Hertz- Strasse 12 , Kerpen , 50170 Germany About Solutions products services Downloads Companies Gecma Components electronic GmbH Products Challenger - Model Ex - Card Reader Challenger - Model Ex - Card Reader 0 Share Card Reader Increased control on operation at the remote station – can also be retrofitted integrally in retrospect.Access control via card or work ID.Significantly reduces the number of password entries. Downloads related to this product Challenger - Model Ex - Card Reader Brochure Customer reviews No reviews were found for Challenger - Model Ex - Card Reader. Be the first to review! Add your review Publish your review Great! review successfully added!