diff --git a/README.md b/README.md
index 69965f9..ee61568 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,11 @@
 # Geiger-interface
 
+### GMC.MAP integration
+- Create account on https://www.gmcmap.com/
+- Login, go to **My Account** -> **Manage Geiger Counter**
+- Go to **Add device**, select location on map, select your model -> **OTHER**
+After that you will see **Account ID** and **Geiger Counter ID**
+
 ### HomeAssistant integration
 After MQTT is configured in Geiger-interface, simply add to HomeAssistant configuration.yaml
 
@@ -35,4 +41,5 @@ reload configuration and voilà!
 > *Dead Time for J305 based on the data from the Internet, since the datasheets from suppliers do not contain this data.
 
 ### Resources
-- https://iot-devices.com.ua/
\ No newline at end of file
+- https://iot-devices.com.ua/
+- https://www.gmcmap.com/
\ No newline at end of file