diff --git a/quickstart/example/html/MonitorExample.html b/quickstart/example/html/MonitorExample.html
index 14705ca..79ee4f4 100644
--- a/quickstart/example/html/MonitorExample.html
+++ b/quickstart/example/html/MonitorExample.html
@@ -15,6 +15,11 @@
         <br />
         <div>
             <h3>1. monitor block</h3>
+          <p>
+          <div><label for="M01-url">URL:</label><input type="text" id="M01-url" size="60" /></div>
+          <div><label for="M01-addr">Addr:</label><input type="text" id="M01-addr" size="45" /></div>
+          <div><label for="M01-event">Event:</label><input type="text" id="M01-event" size="60" /></div>
+          <p>
           <button id="M01-1">start monitoring</button>
           <button id="M01-2">stop</button>
           <p><span id="M01-3"></span></p>
diff --git a/quickstart/example/js/MonitorExample.ts b/quickstart/example/js/MonitorExample.ts
index 22834c9..8a1596e 100644
--- a/quickstart/example/js/MonitorExample.ts
+++ b/quickstart/example/js/MonitorExample.ts
@@ -37,10 +37,15 @@ class MonitorExample {
   }
 
   async startMonitorBlock() {
+    const url = getInputValue('M01-url');
+    const addr = getInputValue('M01-addr');
+    const event = getInputValue('M01-event');
+    const provider: HttpProvider = new HttpProvider(url);
+    this.iconService = new IconService(provider);
     const block = await this.iconService.getLastBlock().execute();
     const height = block.height;
-    const spec = new BlockMonitorSpec(Converter.toBigNumber(height + 1),
-      [new EventFilter("ICXIssued(int,int,int,int)", "cx0000000000000000000000000000000000000000")], true);
+    const eventFilter = new EventFilter(event, addr);
+    const spec = new BlockMonitorSpec(Converter.toBigNumber(height + 1), [eventFilter], true);
     const onevent = (data: BlockNotification) => {
       document.getElementById("M01-3").innerHTML = JSON.stringify(data);
     }