Mature bus communication technology, the signal bus is powered by 24V, operates stably and reliably, and is non-independent.

It is small in size, does not take up much space, is easy to install and adopts rail installation.

It has a separate LCD display, which can monitor the real-time residual current value and alarm value more intuitively.

It needs to be used in conjunction with the electrical fire monitoring equipment DH-YKS4900C, H-YKS4900CQ, DH-YKS4900CG and DH-YKS4900CT to form an electrical fire monitoring system.

The address and alarm value can be set directly by pressing the keys, or the encoder can be used for addressing.