Hello Isabella! For the Edwards EST GCF-HDVMH, ensure you mount it securely on a suitable surface, adhering to the specified height and location guidelines. Double-check the wiring, making certain all connections are tight and follow the provided wiring diagram. If your system is addressable, assign the correct address as per your panel’s instructions. Lastly, test the device after installation to confirm functionality. If you encounter any issues, feel free to reach out for further assistance. Good luck!