Data sensor (OKK: optical communication head), suitable for the meters ZE287, ZE295, ZE297, with cable for insertion into the BKE to connect the data interface of the eHZ with communication devices. For cable lengths over 500 mm (ZE210 and ZE215), the ratio of data sensor to eHZ is 1:1, transmission rate 921.6 kBit/s, connector RJ12-6P6C, cable length 500 mm.
