diff --git a/src/controllers/installationController.js b/src/controllers/installationController.js
index f916211a..fa9ad4a7 100644
--- a/src/controllers/installationController.js
+++ b/src/controllers/installationController.js
@@ -1061,8 +1061,6 @@ exports.getMasterSlaveSummary = async (req, reply) => {
 //   }
 // };
 
-
-
 exports.getIotDataByCustomer = async (req, reply) => {
   try {
     const { customerId } = req.params;
@@ -1071,12 +1069,14 @@ exports.getIotDataByCustomer = async (req, reply) => {
       return reply.code(400).send({ error: "customerId is required" });
     }
 
+    // Fetch sensors for the customer
     const sensors = await Insensors.find({ customerId });
 
     if (!sensors || sensors.length === 0) {
       return reply.code(404).send({ message: "No sensors found for this customer." });
     }
 
+    // Extract unique connected hardwareIds
     const hardwareIds = [
       ...new Set(
         sensors
@@ -1089,12 +1089,15 @@ exports.getIotDataByCustomer = async (req, reply) => {
       return reply.send({ status_code: 200, message: "No connected hardwareIds found", data: [] });
     }
 
+    // Fetch latest IoT data and merge with sensor info
     const latestDataPromises = hardwareIds.map(async hardwareId => {
       const latestRecord = await IotData.findOne({ hardwareId })
         .sort({ date: -1 })
         .lean();
 
-      // Determine the message based on tanks data
+      const relatedSensor = sensors.find(sensor => sensor.connected_to?.trim() === hardwareId);
+
+      // Determine GSM status message
       let message = "GSM is not connected";
       if (latestRecord && Array.isArray(latestRecord.tanks)) {
         const hasTankData = latestRecord.tanks.some(
@@ -1109,7 +1112,8 @@ exports.getIotDataByCustomer = async (req, reply) => {
         hardwareId,
         message,
         latestRecord,
-        
+        masterName: relatedSensor?.masterName ?? null,
+        location: relatedSensor?.location ?? null
       };
     });
 
@@ -1126,6 +1130,3 @@ exports.getIotDataByCustomer = async (req, reply) => {
     return reply.code(500).send({ error: "Internal Server Error" });
   }
 };
-
-
-
diff --git a/src/models/store.js b/src/models/store.js
index 6d7be765..52aac643 100644
--- a/src/models/store.js
+++ b/src/models/store.js
@@ -362,7 +362,8 @@ const insensorsSchema = new mongoose.Schema({
   tankLocation: { type: String, default: "0" },
   connected_slave: { type: String, default: null },
   connected_status: { type: String, enum: ["connected", "Not connected", "unknown"], default: "unknown" },
-
+  masterName: { type: String, default: null },
+  location: { type: String, default: null },
   quality_check_details: [{
     damage_check: { result: String },
     stickering_check: { result: String },