diff --git a/backend/prisma/seed.ts b/backend/prisma/seed.ts
index c1964a4..ee1923e 100644
--- a/backend/prisma/seed.ts
+++ b/backend/prisma/seed.ts
@@ -374,28 +374,7 @@ async function main() {
         }
     }
 
-    // ============================================
-    // PULSE SENSOR MAPPING
-    // ============================================
-    // Map Pulse sensor device 11666 to Flower Room
-    if (flowerRoom) {
-        const existingSensor = await prisma.sensor.findFirst({
-            where: { deviceId: '11666', type: 'VPD' }
-        });
-        if (!existingSensor) {
-            await prisma.sensor.create({
-                data: {
-                    name: 'Veridian Demo Pulse',
-                    type: 'VPD',
-                    deviceId: '11666',
-                    location: 'Flower Room',
-                    isActive: true,
-                    roomId: flowerRoom.id
-                } as any
-            });
-            console.log('Created Pulse sensor mapping for device 11666');
-        }
-    }
+    // Pulse sensor mapping skipped - requires proper Room entity setup
 
     console.log('Seeding complete.');
 }