diff --git a/exporter.py b/exporter.py
index 4cb6610..9ad9599 100644
--- a/exporter.py
+++ b/exporter.py
@@ -10,6 +10,12 @@ topics = [
         ("+/alert", 0),
         ("homelab/ats/supply/+", 0)
         ]
+nodes = {
+        'rack-temp': 'Office RPi temperature probes',
+        'powerpi': 'Homelab RPi power monitoring',
+        'hass': 'Home Assistant',
+        'exporter': 'Prometheus MQTT topic exporter'
+        }
 
 node_api = NodeAPI()
 
@@ -18,6 +24,12 @@ MQTT_BROKER_CLIENTS = Gauge('mqtt_broker_clients', 'MQTT broker clients connecte
 MQTT_ALERT = Gauge('mqtt_alert_state', 'MQTT alert topic states', ['origin', 'alert'])
 MQTT_STATUS = Gauge('mqtt_status', 'MQTT status topic', ['status'])
 
+def get_desc(node):
+    if node in nodes:
+        return nodes[node]
+    else:
+        return node_api.get(node)
+
 def on_log(client, userdata, level, buff):
     print(buff)
 
@@ -39,7 +51,7 @@ def on_message(client, userdata, msg):
     topic = msg.topic.split('/')
 
     if topic[0] == "$CONNECTED":
-        MQTT_CONNECTED.labels(topic[1], node_api.get(topic[1])).set(int(msg.payload))
+        MQTT_CONNECTED.labels(topic[1], get_desc(topic[1])).set(int(msg.payload))
 
     elif msg.topic == "$SYS/broker/clients/connected":
         MQTT_BROKER_CLIENTS.set(int(msg.payload))