Models 10-110/115/120/125 are general purpose reed relay switching modules, available in a very wide choice of switch types with Changeover and Normally Open contact configurations. Suitable for the construction of switching networks, for slaving up to larger switches, or for operating external devices. For applications requiring screened relays please look at our 10-120 and 10-125 range of shielded reed relay modules which are suitable for the construction of low noise & crosstalk switching networks.