Electronics company Asus launched the ZenFone 2 series in the European market on Wednesday, the firm announced on Twitter. With ZenFone 2 ZE500CL, the series of Asus smartphone starts at a price of EUR 179 (Rs 12,000). The ZenFone 2 ZE550ML is priced at EUR 249 (Rs 16,700) and ZenFone 2 ZE551ML is available at EUR 349 (Rs 23,500).