diff --git a/src/api/concentrators.ts b/src/api/concentrators.ts
new file mode 100644
index 0000000..5f8034a
--- /dev/null
+++ b/src/api/concentrators.ts
@@ -0,0 +1,206 @@
+const API_BASE_URL = import.meta.env.VITE_API_BASE_URL;
+export const CONCENTRATORS_API_URL = `${API_BASE_URL}/api/v3/data/ppfu31vhv5gf6i0/mqqvi3woqdw5ziq/records`;
+const API_TOKEN = import.meta.env.VITE_API_TOKEN;
+
+const getAuthHeaders = () => ({
+  Authorization: `Bearer ${API_TOKEN}`,
+  "Content-Type": "application/json",
+});
+
+export interface ConcentratorRecord {
+  id: string;
+  fields: {
+    "Area Name": string;
+    "Device S/N": string;
+    "Device Name": string;
+    "Device Time": string;
+    "Device Status": string;
+    "Operator": string;
+    "Installed Time": string;
+    "Communication Time": string;
+    "Instruction Manual": string;
+  };
+}
+
+export interface ConcentratorsResponse {
+  records: ConcentratorRecord[];
+  next?: string;
+  prev?: string;
+  nestedNext?: string;
+  nestedPrev?: string;
+}
+
+export interface Concentrator {
+  id: string;
+  "Area Name": string;
+  "Device S/N": string;
+  "Device Name": string;
+  "Device Time": string;
+  "Device Status": string;
+  "Operator": string;
+  "Installed Time": string;
+  "Communication Time": string;
+  "Instruction Manual": string;
+}
+
+export const fetchConcentrators = async (): Promise<Concentrator[]> => {
+  try {
+    const response = await fetch(CONCENTRATORS_API_URL, {
+      method: "GET",
+      headers: getAuthHeaders(),
+    });
+
+    if (!response.ok) {
+      throw new Error("Failed to fetch concentrators");
+    }
+
+    const data: ConcentratorsResponse = await response.json();
+
+    return data.records.map((r: ConcentratorRecord) => ({
+      id: r.id,
+      "Area Name": r.fields["Area Name"] || "",
+      "Device S/N": r.fields["Device S/N"] || "",
+      "Device Name": r.fields["Device Name"] || "",
+      "Device Time": r.fields["Device Time"] || "",
+      "Device Status": r.fields["Device Status"] || "",
+      "Operator": r.fields["Operator"] || "",
+      "Installed Time": r.fields["Installed Time"] || "",
+      "Communication Time": r.fields["Communication Time"] || "",
+      "Instruction Manual": r.fields["Instruction Manual"] || "",
+    }));
+  } catch (error) {
+    console.error("Error fetching concentrators:", error);
+    throw error;
+  }
+};
+
+export const createConcentrator = async (
+  concentratorData: Omit<Concentrator, "id">
+): Promise<Concentrator> => {
+  try {
+    const response = await fetch(CONCENTRATORS_API_URL, {
+      method: "POST",
+      headers: getAuthHeaders(),
+      body: JSON.stringify({
+        fields: {
+          "Area Name": concentratorData["Area Name"],
+          "Device S/N": concentratorData["Device S/N"],
+          "Device Name": concentratorData["Device Name"],
+          "Device Time": concentratorData["Device Time"],
+          "Device Status": concentratorData["Device Status"],
+          "Operator": concentratorData["Operator"],
+          "Installed Time": concentratorData["Installed Time"],
+          "Communication Time": concentratorData["Communication Time"],
+          "Instruction Manual": concentratorData["Instruction Manual"],
+        },
+      }),
+    });
+
+    if (!response.ok) {
+      throw new Error(`Failed to create concentrator: ${response.status} ${response.statusText}`);
+    }
+
+    const data = await response.json();
+    const createdRecord = data.records?.[0];
+
+    if (!createdRecord) {
+      throw new Error("Invalid response format: no record returned");
+    }
+
+    return {
+      id: createdRecord.id,
+      "Area Name": createdRecord.fields["Area Name"] || concentratorData["Area Name"],
+      "Device S/N": createdRecord.fields["Device S/N"] || concentratorData["Device S/N"],
+      "Device Name": createdRecord.fields["Device Name"] || concentratorData["Device Name"],
+      "Device Time": createdRecord.fields["Device Time"] || concentratorData["Device Time"],
+      "Device Status": createdRecord.fields["Device Status"] || concentratorData["Device Status"],
+      "Operator": createdRecord.fields["Operator"] || concentratorData["Operator"],
+      "Installed Time": createdRecord.fields["Installed Time"] || concentratorData["Installed Time"],
+      "Communication Time": createdRecord.fields["Communication Time"] || concentratorData["Communication Time"],
+      "Instruction Manual": createdRecord.fields["Instruction Manual"] || concentratorData["Instruction Manual"],
+    };
+  } catch (error) {
+    console.error("Error creating concentrator:", error);
+    throw error;
+  }
+};
+
+export const updateConcentrator = async (
+  id: string,
+  concentratorData: Omit<Concentrator, "id">
+): Promise<Concentrator> => {
+  try {
+    const response = await fetch(CONCENTRATORS_API_URL, {
+      method: "PATCH",
+      headers: getAuthHeaders(),
+      body: JSON.stringify({
+        id: id,
+        fields: {
+          "Area Name": concentratorData["Area Name"],
+          "Device S/N": concentratorData["Device S/N"],
+          "Device Name": concentratorData["Device Name"],
+          "Device Time": concentratorData["Device Time"],
+          "Device Status": concentratorData["Device Status"],
+          "Operator": concentratorData["Operator"],
+          "Installed Time": concentratorData["Installed Time"],
+          "Communication Time": concentratorData["Communication Time"],
+          "Instruction Manual": concentratorData["Instruction Manual"],
+        },
+      }),
+    });
+
+    if (!response.ok) {
+      if (response.status === 400) {
+        const errorData = await response.json();
+        throw new Error(`Bad Request: ${errorData.msg || "Invalid data provided"}`);
+      }
+      throw new Error(`Failed to update concentrator: ${response.status} ${response.statusText}`);
+    }
+
+    const data = await response.json();
+    const updatedRecord = data.records?.[0];
+
+    if (!updatedRecord) {
+      throw new Error("Invalid response format: no record returned");
+    }
+
+    return {
+      id: updatedRecord.id,
+      "Area Name": updatedRecord.fields["Area Name"] || concentratorData["Area Name"],
+      "Device S/N": updatedRecord.fields["Device S/N"] || concentratorData["Device S/N"],
+      "Device Name": updatedRecord.fields["Device Name"] || concentratorData["Device Name"],
+      "Device Time": updatedRecord.fields["Device Time"] || concentratorData["Device Time"],
+      "Device Status": updatedRecord.fields["Device Status"] || concentratorData["Device Status"],
+      "Operator": updatedRecord.fields["Operator"] || concentratorData["Operator"],
+      "Installed Time": updatedRecord.fields["Installed Time"] || concentratorData["Installed Time"],
+      "Communication Time": updatedRecord.fields["Communication Time"] || concentratorData["Communication Time"],
+      "Instruction Manual": updatedRecord.fields["Instruction Manual"] || concentratorData["Instruction Manual"],
+    };
+  } catch (error) {
+    console.error("Error updating concentrator:", error);
+    throw error;
+  }
+};
+
+export const deleteConcentrator = async (id: string): Promise<void> => {
+  try {
+    const response = await fetch(CONCENTRATORS_API_URL, {
+      method: "DELETE",
+      headers: getAuthHeaders(),
+      body: JSON.stringify({
+        id: id,
+      }),
+    });
+
+    if (!response.ok) {
+      if (response.status === 400) {
+        const errorData = await response.json();
+        throw new Error(`Bad Request: ${errorData.msg || "Invalid data provided"}`);
+      }
+      throw new Error(`Failed to delete concentrator: ${response.status} ${response.statusText}`);
+    }
+  } catch (error) {
+    console.error("Error deleting concentrator:", error);
+    throw error;
+  }
+};
diff --git a/src/api/projects.ts b/src/api/projects.ts
index 831b6d4..755cbec 100644
--- a/src/api/projects.ts
+++ b/src/api/projects.ts
@@ -72,7 +72,7 @@ export const fetchProjectNames = async (): Promise<string[]> => {
     return projectNames;
   } catch (error) {
     console.error("Error fetching project names:", error);
-    return ["GRH (PADRE)", "CESPT", "Proyecto A", "Proyecto B"];
+    return [];
   }
 };
 
diff --git a/src/pages/concentrators/ConcentratorsPage.tsx b/src/pages/concentrators/ConcentratorsPage.tsx
index 3a7eec8..875f020 100644
--- a/src/pages/concentrators/ConcentratorsPage.tsx
+++ b/src/pages/concentrators/ConcentratorsPage.tsx
@@ -2,20 +2,15 @@ import { useState, useEffect, useMemo } from "react";
 import { Plus, Trash2, Pencil, RefreshCcw } from "lucide-react";
 import MaterialTable from "@material-table/core";
 import { fetchProjectNames } from "../../api/projects";
-import { createConcentrator } from "./concentrators.api";
+import {
+  fetchConcentrators,
+  createConcentrator,
+  updateConcentrator,
+  deleteConcentrator,
+  type Concentrator,
+} from "../../api/concentrators";
 
 /* ================= TYPES ================= */
-interface Concentrator {
-  "Area Name": string;
-  "Device S/N": string;
-  "Device Name": string;
-  "Device Time": string;
-  "Device Status": string;
-  "Operator": string;
-  "Installed Time": string;
-  "Communication Time": string;
-  "Instruction Manual": string;
-}
 
 interface User {
   name: string;
@@ -34,6 +29,7 @@ export default function ConcentratorsPage() {
 
   const [allProjects, setAllProjects] = useState<string[]>([]);
   const [loadingProjects, setLoadingProjects] = useState(true);
+  const [loadingConcentrators, setLoadingConcentrators] = useState(true);
 
   useEffect(() => {
     const loadProjects = async () => {
@@ -42,7 +38,7 @@ export default function ConcentratorsPage() {
         setAllProjects(projects);
       } catch (error) {
         console.error('Error loading projects:', error);
-        setAllProjects(["GRH (PADRE)", "CESPT", "Proyecto A", "Proyecto B"]);
+        setAllProjects([]);
       } finally {
         setLoadingProjects(false);
       }
@@ -62,6 +58,7 @@ export default function ConcentratorsPage() {
   );
 
   const [selectedProject, setSelectedProject] = useState("");
+  const [concentrators, setConcentrators] = useState<Concentrator[]>([]);
 
   useEffect(() => {
     if (visibleProjects.length > 0 && !selectedProject) {
@@ -69,41 +66,22 @@ export default function ConcentratorsPage() {
     }
   }, [visibleProjects, selectedProject]);
 
-  const [concentrators, setConcentrators] = useState<Concentrator[]>([
-    {
-      "Area Name": "GRH (PADRE)",
-      "Device S/N": "SN001",
-      "Device Name": "Concentrador A",
-      "Device Time": "2025-12-17T10:00:00Z",
-      "Device Status": "ACTIVE",
-      "Operator": "Operador 1",
-      "Installed Time": "2025-12-17",
-      "Communication Time": "2025-12-17T10:30:00Z",
-      "Instruction Manual": "Manual A",
-    },
-    {
-      "Area Name": "CESPT",
-      "Device S/N": "SN002",
-      "Device Name": "Concentrador B",
-      "Device Time": "2025-12-16T11:00:00Z",
-      "Device Status": "INACTIVE",
-      "Operator": "Operador 2",
-      "Installed Time": "2025-12-16",
-      "Communication Time": "2025-12-16T11:30:00Z",
-      "Instruction Manual": "Manual B",
-    },
-    {
-      "Area Name": "Proyecto A",
-      "Device S/N": "SN003",
-      "Device Name": "Concentrador C",
-      "Device Time": "2025-12-15T12:00:00Z",
-      "Device Status": "ACTIVE",
-      "Operator": "Operador 3",
-      "Installed Time": "2025-12-15",
-      "Communication Time": "2025-12-15T12:30:00Z",
-      "Instruction Manual": "Manual C",
-    },
-  ]);
+  const loadConcentrators = async () => {
+    setLoadingConcentrators(true);
+    try {
+      const data = await fetchConcentrators();
+      setConcentrators(data);
+    } catch (error) {
+      console.error("Error loading concentrators:", error);
+      setConcentrators([]);
+    } finally {
+      setLoadingConcentrators(false);
+    }
+  };
+
+  useEffect(() => {
+    loadConcentrators();
+  }, []);
 
   const [activeConcentrator, setActiveConcentrator] = useState<Concentrator | null>(null);
   const [search, setSearch] = useState("");
@@ -129,14 +107,20 @@ export default function ConcentratorsPage() {
   const handleSave = async () => {
     try {
       if (editingSerial) {
+        const concentratorToUpdate = concentrators.find(c => c["Device S/N"] === editingSerial);
+        if (!concentratorToUpdate) {
+          throw new Error("Concentrator to update not found");
+        }
+
+        const updatedConcentrator = await updateConcentrator(concentratorToUpdate.id, form);
         setConcentrators((prev) =>
           prev.map((c) =>
-            c["Device S/N"] === editingSerial ? { ...form } : c
+            c.id === concentratorToUpdate.id ? updatedConcentrator : c
           )
         );
       } else {
-        await createConcentrator(form);
-        setConcentrators((prev) => [...prev, { ...form }]);
+        const newConcentrator = await createConcentrator(form);
+        setConcentrators((prev) => [...prev, newConcentrator]);
       }
       setShowModal(false);
       setEditingSerial(null);
@@ -144,20 +128,35 @@ export default function ConcentratorsPage() {
       setActiveConcentrator(null);
     } catch (error) {
       console.error('Error saving concentrator:', error);
-      setConcentrators((prev) => [...prev, { ...form }]);
-      setShowModal(false);
-      setEditingSerial(null);
-      setForm({ ...getEmptyConcentrator(), "Area Name": selectedProject });
-      setActiveConcentrator(null);
+      alert(
+        `Error saving concentrator: ${
+          error instanceof Error ? error.message : "Please try again."
+        }`
+      );
     }
   };
 
-  const handleDelete = () => {
+  const handleDelete = async () => {
     if (!activeConcentrator) return;
-    setConcentrators((prev) =>
-      prev.filter((c) => c["Device S/N"] !== activeConcentrator["Device S/N"])
+
+    const confirmDelete = window.confirm(
+      `Are you sure you want to delete the concentrator "${activeConcentrator["Device Name"]}"?`
     );
-    setActiveConcentrator(null);
+
+    if (!confirmDelete) return;
+
+    try {
+      await deleteConcentrator(activeConcentrator.id);
+      setConcentrators((prev) => prev.filter((c) => c.id !== activeConcentrator.id));
+      setActiveConcentrator(null);
+    } catch (error) {
+      console.error("Error deleting concentrator:", error);
+      alert(
+        `Error deleting concentrator: ${
+          error instanceof Error ? error.message : "Please try again."
+        }`
+      );
+    }
   };
 
   /* ================= FILTER ================= */
@@ -232,7 +231,17 @@ export default function ConcentratorsPage() {
               onClick={() => {
                 if (!activeConcentrator) return;
                 setEditingSerial(activeConcentrator["Device S/N"]);
-                setForm(activeConcentrator);
+                setForm({
+                  "Area Name": activeConcentrator["Area Name"],
+                  "Device S/N": activeConcentrator["Device S/N"],
+                  "Device Name": activeConcentrator["Device Name"],
+                  "Device Time": activeConcentrator["Device Time"],
+                  "Device Status": activeConcentrator["Device Status"],
+                  "Operator": activeConcentrator["Operator"],
+                  "Installed Time": activeConcentrator["Installed Time"],
+                  "Communication Time": activeConcentrator["Communication Time"],
+                  "Instruction Manual": activeConcentrator["Instruction Manual"],
+                });
                 setShowModal(true);
               }}
               disabled={!activeConcentrator}
@@ -250,7 +259,7 @@ export default function ConcentratorsPage() {
             </button>
 
             <button
-              onClick={() => setConcentrators([...concentrators])}
+              onClick={loadConcentrators}
               className="flex items-center gap-2 px-4 py-2 border border-white/40 rounded-lg"
             >
               <RefreshCcw size={16} /> Refresh
@@ -269,6 +278,7 @@ export default function ConcentratorsPage() {
         {/* TABLE */}
         <MaterialTable
           title="Concentrators"
+          isLoading={loadingConcentrators}
           columns={[
             { title: "Device Name", field: "Device Name" },
             { title: "Device S/N", field: "Device S/N" },
@@ -300,11 +310,18 @@ export default function ConcentratorsPage() {
             sorting: true,
             rowStyle: (rowData) => ({
               backgroundColor:
-                activeConcentrator?.["Device S/N"] === (rowData as Concentrator)["Device S/N"]
+                activeConcentrator?.id === (rowData as Concentrator).id
                   ? "#EEF2FF"
                   : "#FFFFFF",
             }),
           }}
+          localization={{
+            body: {
+              emptyDataSourceMessage: loadingConcentrators
+                ? "Loading concentrators..."
+                : "No concentrators found. Click 'Add' to create your first concentrator.",
+            },
+          }}
         />
       </div>
 
diff --git a/src/pages/concentrators/concentrators.api.ts b/src/pages/concentrators/concentrators.api.ts
deleted file mode 100644
index abac5f7..0000000
--- a/src/pages/concentrators/concentrators.api.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-export const createConcentrator = async (concentratorData: {
-  "Area Name": string;
-  "Device S/N": string;
-  "Device Name": string;
-  "Device Time": string;
-  "Device Status": string;
-  "Operator": string;
-  "Installed Time": string;
-  "Communication Time": string;
-  "Instruction Manual": string;
-}): Promise<void> => {
-  try {
-    // const response = await fetch('/api/v3/data/ppfu31vhv5gf6i0/mqqvi3woqdw5ziq/records', {
-    //   method: 'POST',
-    //   headers: {
-    //     'Content-Type': 'application/json',
-    //   },
-    //   body: JSON.stringify({ fields: concentratorData }),
-    // });
-    // if (!response.ok) {
-    //   throw new Error('Failed to create concentrator');
-    // }
-
-    console.log('Creating concentrator with data:', concentratorData);
-  } catch (error) {
-    console.error('Error creating concentrator:', error);
-    throw error;
-  }
-};