diff --git a/V203/usb/scope/bin/index.js b/V203/usb/scope/bin/index.js
index ec86fea..61ef536 100644
--- a/V203/usb/scope/bin/index.js
+++ b/V203/usb/scope/bin/index.js
@@ -57,11 +57,17 @@ function initWebSocket() {
     websocket.onopen = function (evt) {
       ConnectBut.value = 'Disconnect';
       Connected.innerHTML = 'CONNECTED';
+      const stored = localStorage.getItem ('mark_store');
+      console.log (stored);
+      if (stored) {
+        gMark = JSON.parse (stored);
+      }
       connected = true;
     };
     websocket.onclose = function (evt) {
       ConnectBut.value = 'Connect';
       Connected.innerHTML = 'DISCONNECTED';
+      localStorage.setItem ('mark_store', JSON.stringify (gMark));
       connected = false;
     };
     websocket.onmessage = function (evt) {