These different coloured surrounds allow you to customise the look of the Prox / Press Rex and Em Rex / Smart Em Rex where the client has a particular requirements.
It comprises of a mounting block and deep surround to allow for the surface mounting of the Prox and Em Rex® units. It gives you a neat and professional finish to a surface mounting situation.
The TDL-1RB is an 8 Amp Relay Board. It has 1 x 12Vdc input that switches a single pole double throw relay.