diff --git a/sensors/main.py b/sensors/main.py
index 0820bb3..8b85572 100644
--- a/sensors/main.py
+++ b/sensors/main.py
@@ -40,13 +40,13 @@ def cfg():
 
 # ── VictoriaMetrics ───────────────────────────────────────────────────────────
 
-def write(c, fields):
+def write(c, fields, collection='weather'):
     field_str = ','.join(
         f"{k}={'true' if v is True else 'false' if v is False else v}"
         for k, v in fields.items() if v is not None
     )
     if not field_str: return
-    requests.post(f"{c['VM_URL']}/write", data=f"weather {field_str}", timeout=2)
+    requests.post(f"{c['VM_URL']}/write", data=f"{collection} {field_str}", timeout=2)
 
 # ── Helpers ───────────────────────────────────────────────────────────────────
 
@@ -466,7 +466,7 @@ def read_system(c):
             'disk_used_gb':  round(disk.used / 1024**3, 2),
             'disk_total_gb': round(disk.total / 1024**3, 2),
             'disk_percent':  disk.percent,
-        })
+        }, collection='system')
     except Exception as e:
         print(f"[System] {e}")