diff --git a/heating-temperature-probes.yaml b/heating-temperature-probes.yaml
index 73ebc76..ed5d97e 100644
--- a/heating-temperature-probes.yaml
+++ b/heating-temperature-probes.yaml
@@ -52,4 +52,11 @@ sensor:
   - platform: dallas_temp
     name: Primary circuit
     update_interval: 10s
-    address: 0x930417c15660ff28
\ No newline at end of file
+    address: 0x930417c15660ff28
+
+  - platform: dallas_temp
+    name:  circuit
+    update_interval: 10s
+    address: 0x930417c15660ff28
+
+0x370417c1477fff28 (DS18B20)
\ No newline at end of file