diff --git a/node-red-contrib-ble-rw.zip b/node-red-contrib-ble-rw.zip
new file mode 100644
index 0000000..b923e68
Binary files /dev/null and b/node-red-contrib-ble-rw.zip differ
diff --git a/src/GattServer.js b/src/GattServer.js
index 47dc160..e940812 100644
--- a/src/GattServer.js
+++ b/src/GattServer.js
@@ -54,6 +54,38 @@ class GattServer {
 
     throw new Error('Service not available')
   }
+
+  /**
+   * Find the service UUID and characteristic UUID based on a characteristic handle
+   * @param {number} charHandle
+   * @returns {Object|null}
+   */
+  async getUUIDbyHandle (charHandle) {
+    const handle = charHandle - 1
+    const handleStr = 'char' + handle.toString(16).padStart(4, '0')
+
+    for (const key in this.dbus._matchRules) {
+      if (key.includes(handleStr)) {
+        const match = key.match(/service[0-9a-fA-F]+/)
+        if (match) {
+          const service = match[0]
+          const services = this._services
+          for (const skey in services) {
+            if (services[skey].service === service) {
+              const characteristics = services[skey]._characteristics
+              for (const ckey in characteristics) {
+                if (characteristics[ckey].characteristic === handleStr) {
+                  return { service: skey, char: ckey }
+                }
+              }
+              return null
+            }
+          }
+        }
+      }
+    }
+    return null
+  }
 }
 
 module.exports = GattServer