Two relays are included in this pack. One unit is EC24.5NU and the second unit is one of EC25NU, EC212NU, or EC224NU. Models in the offering: EC24.5NU, EC25NU, EC212NU, EC224NU. This pack provides two EC-series relays for flexible use in your projects. What you get and why it helps - Function: general purpose electromechanical relays for switching control circuits. - Compatibility: suitable for use with the EC24.5NU family and other EC-series variants listed above. - Practical reliability: designed to provide dependable switching in electronic control applications. - Versatile options: the presence of EC24.5NU plus an additional EC-series model gives you options to match your load and control needs. 2-3 practical use scenarios - Home automation: control lighting or fans from a microcontroller or smart hub, with electrical isolation between logic and load. - Industrial control panel: switch higher-power devices from a low-voltage control circuit while keeping control electronics protected. - Prototyping and testing: evaluate different EC-series variants on a development board to determine the best fit for your application. Note: the pack includes exactly two relays; one is EC24.5NU, and the other is one of EC25NU, EC212NU, or EC224NU.