HWg-SH4 plain unit – Ultimate RFID access control system. Connect 2 RFID readers and 2 electronic locks. Can work as a standalone unit or together with SH4e or SH4s to control more doors with lower implementation costs
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The SH4 is an ultimate access system that works with any electromagnetic lock and any RFID reader. It will work in your datacenter as well as in your office or even your home. Whether you have one door or several hundred racks, the SH4 system provides a cost-effective way to manage access to your technology.

Each SH4 device can connect up to 2 electromagnetic locks and 2 RFID readers of your choice. There are many locks and RFID readers on the market. The SH4 already supports the most common models and others can be added upon request.

You can find more details about how the system works here: sh4.hw-group.us


  • Controls two electromagnetic locks
  • Is controlled and configured by an SH4 unit
  • Can be managed in the free DCD2 SW
  • List of supported accessories (RFID + handles)
Applications and usage:

The small applications can be, for example apartment houses, small companies, or systems using existing RFID tags.

Apartment building access system

HWg-SH4 can be used as an access system for apartment houses or offices. A typical application is using an RFID reader for access from the outside of the building, together with an exit button installed on the inner side of the door. To enter the house, you can then simply use the RFID tag, and to leave the building, you can press an exit button. The door can also be opened remotely from individual apartments. The system can also be used to control the gate to a parking lot.

Using HWg-DCD is optional in such cases, as it is not needed for direct administration. However, it can notably simplify the registration of access tags and the deactivation of lost ones.

Additional information

Weight0.310 kg
Dimensions115 × 105 × 35 cm