diff --git a/src/controllers/installationController.js b/src/controllers/installationController.js
index 07284d1d..1e0e08aa 100644
--- a/src/controllers/installationController.js
+++ b/src/controllers/installationController.js
@@ -1952,10 +1952,9 @@ exports.getIotDataByCustomer = async (req, reply) => {
     const masterHardwareIds = [
       ...new Set(sensors.map(s => s.connected_to?.trim()).filter(Boolean))
     ];
-
     const enrichedMasters = await Promise.all(masterHardwareIds.map(async (hardwareId) => {
       const latestRecord = await IotData.findOne({ hardwareId }).sort({ date: -1 }).lean();
-
+    
       if (!latestRecord) {
         return {
           hardwareId,
@@ -1963,44 +1962,48 @@ exports.getIotDataByCustomer = async (req, reply) => {
           tanks: []
         };
       }
-
+    
       // ✅ Use timestamp to check GSM connection
       const indiaTime = moment.tz(latestRecord.date, "Asia/Kolkata");
       const now = moment.tz("Asia/Kolkata");
       const diffInMinutes = now.diff(indiaTime, "minutes");
       const gsmConnected = diffInMinutes <= 1;
-
+    
       const message = gsmConnected ? "GSM is connected" : "GSM is not connected";
-
+    
       // Get all connected slaves
       const connectedSlaves = sensors.filter(sensor => sensor.connected_to?.trim() === hardwareId);
-
+    
       // Enrich tanks
       let tanks = connectedSlaves.map(slave => {
         const slaveId = slave.hardwareId?.trim();
         const matchedTank = latestRecord.tanks.find(tank => tank.tankhardwareId === slaveId);
-
+    
         let loraConnected = false;
-        if (matchedTank?.date) {
+        let loraMessage = "LORA is not connected"; // Default message for LoRa not connected
+    
+        // If matchedTank exists and tankHeight is not zero, check LoRa connection
+        if (matchedTank?.date && matchedTank.tankHeight !== "0") {
           const tankTime = moment.tz(matchedTank.date, "Asia/Kolkata");
           const loraDiff = now.diff(tankTime, "minutes");
           loraConnected = loraDiff <= 1;
+          loraMessage = loraConnected ? "LORA is connected" : "LORA is not connected";
         }
-
+    
         return {
           tankhardwareId: slaveId,
           tankName: slave.tankName ?? null,
           tankLocation: slave.tankLocation ?? null,
           masterName: slave.masterName ?? null,
           location: slave.location ?? null,
-          loraMessage: loraConnected ? "LORA is connected" : "LORA is not connected",
+          loraMessage, // Updated LoRa message
           latestTankData: matchedTank ?? null
         };
       });
-
+    
       // ✅ Remove the first tank
       tanks = tanks.slice(1);
-
+    
       return {
         hardwareId,
         message,
@@ -2009,6 +2012,7 @@ exports.getIotDataByCustomer = async (req, reply) => {
         tanks
       };
     }));
+    
 
     return reply.send({
       status_code: 200,