With the EMP 500 v7 / CLB, a 3-one payment solution has been developed that enables payment with a mobile phone, credit card or coins with just one device. This Bluetooth or NFC-based payment method offers more flexibility for operators of e.g. laundromats. Extensive backend functions are available via our web platform.

The EMP 500 coin selector in the new v7 version captures the market. With a 32-bit micro processor technology highest quality of coin acceptance and at the same time an optimum of rejection of counterfeits is achieved. The new mechanical design with adaptive coin–on-a-string detection further enhances security of this device.

wh Münzpüfer Dietmar Trenner GmbH is focused on production and distribution of mechanical coin selectors and electronic coin selector EMP 500. During the years the product range has been completed by solutions for special applications, such as coin selector including triggering for kicker tables. For laundry machines a variety of selectors is available.

A Many years of experiences, steady development in close co-operation with our customers as well as close orientation on the market has come up with a new generation of coins selectors.

Tasteful blend of traditional and architecturally designed new buildings now provide extended production. r & d facilities, together with a purpose designed building exclusively reserved for customer service.

Our development of microelectronics in line with customer and market forces for miniaturisation, integration and reliability underscored with introduction of the electronic coin selector series EMP 800.

Christian Trenner, the third generation of this family owned Company, continues with the established policy of investment in highly qualified people and the provision of state of the art equipment.

Development of the all electronic coin selector resulted in EMP 645 the first units being installed in parking machines in Paris.

A new factory, with improved facilities is commissioned in Berlin-Zehlendorf.

With Dietmar Trenner becoming President of "Walter Hanke Mechanische Werkstätten" the company "wh Münzprüfer Dietmar Trenner GmbH" was born.

Following a period of reconstruction, production of coin selectors recommences and the world-wide distribution starts.

Founded in 1925 under the direction of Walter Hanke, the Company instigates the development of mechanical coin selectors - initially for amusement machines in Berlin.