diff --git a/moonraker/plugins/power.py b/moonraker/plugins/power.py
index 1c401e9..b5cc5f8 100644
--- a/moonraker/plugins/power.py
+++ b/moonraker/plugins/power.py
@@ -69,9 +69,9 @@ class PrinterPower:
             await GPIO.verify_pin(self.devices[dev]["pin"],
                                   self.devices[dev]["active_low"])
             if path == "/machine/gpio_power/on":
-                GPIO.set_pin_value(self.devices[dev]["pin"], 1)
+                await self._power_dev(dev, "on")
             elif path == "/machine/gpio_power/off":
-                GPIO.set_pin_value(self.devices[dev]["pin"], 0)
+                await self._power_dev(dev, "off")
             elif path != "/machine/gpio_power/status":
                 raise self.server.error("Unsupported power request")
 
@@ -81,6 +81,23 @@ class PrinterPower:
             result[dev] = self.devices[dev]["status"]
         return result
 
+    async def _power_dev(self, dev, status):
+        if dev not in self.devices:
+            return
+
+        if (status == "on"):
+            GPIO.set_pin_value(self.devices[dev]["pin"], 1)
+            self.server.send_event("gpio_power:power_changed", {
+                "device": dev,
+                "status": "on"
+            })
+        elif (status == "off"):
+            GPIO.set_pin_value(self.devices[dev]["pin"], 0)
+            self.server.send_event("gpio_power:power_changed", {
+                "device": dev,
+                "status": "off"
+            })
+
     async def initialize_devices(self, devices):
         for name, device in devices.items():
             try:
diff --git a/moonraker/websockets.py b/moonraker/websockets.py
index b1b7576..cb95e56 100644
--- a/moonraker/websockets.py
+++ b/moonraker/websockets.py
@@ -117,6 +117,8 @@ class WebsocketManager:
             "file_manager:filelist_changed", self._handle_filelist_changed)
         self.server.register_event_handler(
             "file_manager:metadata_update", self._handle_metadata_update)
+        self.server.register_event_handler(
+            "gpio_power:power_changed", self._handle_power_changed)
 
     async def _handle_klippy_disconnect(self):
         await self.notify_websockets("klippy_disconnected")
@@ -133,6 +135,9 @@ class WebsocketManager:
     async def _handle_metadata_update(self, metadata):
         await self.notify_websockets("metadata_update", metadata)
 
+    async def _handle_power_changed(self, pstatus):
+        await self.notify_websockets("power_changed", pstatus)
+
     def register_local_handler(self, api_def, callback):
         for ws_method, req_method in \
                 zip(api_def.ws_methods, api_def.request_methods):