diff --git a/python/README.md b/python/README.md
index 0ac1406a..4131badc 100644
--- a/python/README.md
+++ b/python/README.md
@@ -22,3 +22,22 @@ Writting an OPC-UA server is as simple as:
 
     finally:
         s.stop()
+        
+        
+
+## Demo GUI for real-time data visualization (gui-demo.py)
+
+>### Requirements:
+1) Simulation server (Eg. Prosys simulation server)
+2) IDE with python libraries installed
+3) MySql database
+4) OPCUA Python library
+
+>### Features:
+1) This script enables you to visualize the OPC values in real-time with the facility of data logging. 
+2) An alert will be generated when the downtime reaches a threshold limit.
+3) Values can be adjusted as per the need.
+
+>### Screenshot of GUI:
+
+![3](https://user-images.githubusercontent.com/44259288/94888861-0330c500-0498-11eb-92a6-82e28eb16a17.jpg)
diff --git a/python/gui-demo b/python/gui-demo
new file mode 100644
index 00000000..08614385
--- /dev/null
+++ b/python/gui-demo
@@ -0,0 +1,374 @@
+import tkinter as tk
+import time
+from opcua import Client
+import mysql.connector
+import datetime
+from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
+from matplotlib.figure import Figure
+
+# Enter Simulation Server URL
+url = ""; 
+
+
+
+# Database connectivity
+mydb = mysql.connector.connect(
+  host="", 
+  user="",
+  passwd="",
+  database=""
+)
+
+mycursor = mydb.cursor()
+
+client = Client(url)
+
+client.connect()
+
+# GUI Code
+root = tk.Tk()
+
+root.configure(background='#00bbff')
+
+clabel = tk.Label(root, text="Generate OPC UA Values")
+clabel.pack()
+clabel.configure(background='white')
+clabel.place(x=500, y=10, height=100, width=500)
+
+clabel1 = tk.Label(root, text="Counter Value : ",padx=10, pady=10)
+clabel1.pack()
+clabel1.place(x=500, y=200)
+clabel1.configure(background='white')
+
+label1 = tk.Label(root, fg="black")
+label1.pack() 
+label1.configure(background='#00bbff')
+label1.place(x=500, y=250)
+
+hlimit1 = tk.Label(root)
+hlimit1.pack()
+hlimit1.place(x=500, y=300)
+hlimit1.configure(background='#00bbff', fg='black')
+
+r2 = tk.Label(root, text="> 0.5")
+r2.pack()
+r2.place(x=400, y=300)
+r2.configure(background="white")
+
+clabel2 = tk.Label(root, text="Sinusoidal Value : ", fg="white",padx=10, pady=10)
+clabel2.pack()
+clabel2.place(x=700, y=200)
+clabel2.configure(background='green')
+
+label2 = tk.Label(root, fg="black")
+label2.pack() 
+label2.configure(background='#00bbff')
+label2.place(x=700, y=250)
+
+hlimit2 = tk.Label(root)
+hlimit2.pack()
+hlimit2.place(x=700, y=300)
+hlimit2.configure(background='#00bbff', fg='black')
+
+clabel3 = tk.Label(root, text="Random Value : ", fg="white",padx=10, pady=10)
+clabel3.pack()
+clabel3.place(x=900, y=200)
+clabel3.configure(background='green')
+
+label3 = tk.Label(root, fg="black")
+label3.pack() 
+label3.configure(background='#00bbff')
+label3.place(x=900, y=250)
+
+hlimit3 = tk.Label(root)
+hlimit3.pack()
+hlimit3.place(x=900, y=300)
+hlimit3.configure(background='#00bbff', fg='black')
+
+clabel4 = tk.Label(root, text="Sawtooth Value : ", fg="white",padx=10, pady=10)
+clabel4.pack()
+clabel4.place(x=1100, y=200)
+clabel4.configure(background='green')
+
+label4 = tk.Label(root, fg="black")
+label4.pack() 
+label4.configure(background='#00bbff')
+label4.place(x=1100, y=250)
+
+hlimit4 = tk.Label(root)
+hlimit4.pack()
+hlimit4.place(x=1100, y=300)
+hlimit4.configure(background='#00bbff', fg='black')
+
+clabel5 = tk.Label(root, text="Triangle Value : ", fg="white",padx=10, pady=10)
+clabel5.pack()
+clabel5.place(x=1300, y=200)
+clabel5.configure(background='green')
+
+label5 = tk.Label(root, fg="black")
+label5.pack() 
+label5.configure(background='#00bbff')
+label5.place(x=1300, y=250)
+
+hlimit5 = tk.Label(root)
+hlimit5.pack()
+hlimit5.place(x=1300, y=300)
+hlimit5.configure(background='#00bbff', fg='black')
+
+c2 = 0
+c3 = 0
+c4 = 0
+c5 = 0
+
+counterArray = []
+sineArray = []
+randomArray = []
+sawtoothArray = []
+triangleArray = []
+timeArray = []
+
+sinet1 = ""
+sinet2 = ""
+randomt1 = ""
+randomt2 = ""
+sawtootht1 = ""
+sawtootht2 = ""
+trianglet1 = ""
+trianglet2 = ""
+
+temp1 = 1
+temp2 = 1
+temp3 = 1
+temp4 = 1
+
+countsine = 0
+countrandom = 0
+countsawtooth = 0
+counttriangle = 0
+
+def counter_label1():
+    global timeArray
+    global sineArray
+    global randomArray
+    global sawtoothArray
+    global triangleArray
+    global countsine
+    global countrandom
+    global countsawtooth
+    global counttriangle
+    
+    named_tuple = time.localtime() # get struct_time
+    time_string = time.strftime("%H:%M:%S", named_tuple)
+    timeArray.append(time_string)
+    
+    button1.configure(state='disabled')
+    Counter = client.get_node("ns=5;s=Counter1")
+    counter = Counter.get_value()
+    label1.config(text=str(counter))
+    
+    counterArray.append(counter)
+    
+    Sine = client.get_node("ns=5;s=Sinusoid1")
+    sine = Sine.get_value()
+    label2.config(text=str(sine))
+    
+    sineArray.append(sine)
+    
+    if sine > 0.5 :
+        if countsine == 0 :
+            global sinet1
+            sinet1 = datetime.datetime.now()
+        countsine += 1
+        clabel2.configure(background='red')
+    else :
+        global sinet2
+        global temp1
+        if countsine is not 0 :   
+            sinet2 = datetime.datetime.now()
+            #timediff = sinet2-sinet1
+            formatted_datetime1 = sinet1.strftime('%Y-%m-%d %H:%M:%S')
+            formatted_datetime2 = sinet2.strftime('%Y-%m-%d %H:%M:%S')
+            sql1 = "INSERT INTO sinealert(Number,Generation,Checked,Downtime) VALUES (%d,'%s','%s','%s')"
+            val1 = (temp1,formatted_datetime1,formatted_datetime2,countsine)
+            mycursor.execute(sql1 %val1)
+            temp1 += 1 
+        clabel2.configure(background='green')
+        countsine = 0
+            
+    Random = client.get_node("ns=5;s=Random1")
+    random = Random.get_value()
+    label3.config(text=str(random))
+    
+    randomArray.append(random)
+    
+    if random > 0.5 :
+        if countrandom == 0 :
+            global randomt1
+            randomt1 = datetime.datetime.now()
+        countrandom += 1
+        clabel3.configure(background='red')
+    else :
+        global randomt2
+        global temp2
+        if countrandom is not 0 :    
+            randomt2 = datetime.datetime.now()
+            #timediff = randomt2-randomt1
+            formatted_datetime1 = randomt1.strftime('%Y-%m-%d %H:%M:%S')
+            formatted_datetime2 = randomt2.strftime('%Y-%m-%d %H:%M:%S')
+            sql2 = "INSERT INTO randomalert(Number,Generation,Checked,Downtime) VALUES (%d,'%s','%s','%s')"
+            val2 = (temp2,formatted_datetime1,formatted_datetime2,countrandom)
+            mycursor.execute(sql2 %val2)
+            temp2 += 1
+        clabel3.configure(background='green')
+        countrandom = 0
+        
+    Sawtooth = client.get_node("ns=5;s=Sawtooth1")
+    sawtooth = Sawtooth.get_value()
+    label4.config(text=str(sawtooth))
+    
+    sawtoothArray.append(sawtooth)
+    
+    if sawtooth > 0.5 :
+        if countsawtooth == 0 : 
+            global sawtootht1
+            sawtootht1 = datetime.datetime.now()
+        countsawtooth += 1
+        clabel4.configure(background='red')
+    else :
+        global sawtootht2
+        global temp3
+        
+        if countsawtooth is not 0 :  
+            sawtootht2 = datetime.datetime.now()  
+            #timediff = sawtootht2-sawtootht1
+            formatted_datetime1 = sawtootht1.strftime('%Y-%m-%d %H:%M:%S')
+            formatted_datetime2 = sawtootht2.strftime('%Y-%m-%d %H:%M:%S')
+            sql3 = "INSERT INTO sawtoothalert(Number,Generation,Checked,Downtime) VALUES (%d,'%s','%s','%s')"
+            val3 = (temp3,formatted_datetime1,formatted_datetime2,countsawtooth)
+            mycursor.execute(sql3 %val3)
+            temp3 += 1
+        clabel4.configure(background='green')
+        countsawtooth = 0
+        
+    Triangle = client.get_node("ns=5;s=Triangle1")
+    triangle = Triangle.get_value()
+    label5.config(text=str(triangle))
+    
+    triangleArray.append(triangle)
+    
+    if triangle > 0.5 :
+        if counttriangle == 0 :
+            global trianglet1
+            trianglet1 = datetime.datetime.now()
+        counttriangle += 1
+        clabel5.configure(background='red')
+    else :
+        global trianglet2
+        global temp4
+        trianglet2 = datetime.datetime.now()
+        if counttriangle is not 0 :    
+            #timediff = trianglet2-trianglet1
+            formatted_datetime1 = trianglet1.strftime('%Y-%m-%d %H:%M:%S')
+            formatted_datetime2 = trianglet2.strftime('%Y-%m-%d %H:%M:%S')
+            sql4 = "INSERT INTO trianglealert(Number,Generation,Checked,Downtime) VALUES (%d,'%s','%s','%s')"
+            val4 = (temp4,formatted_datetime1,formatted_datetime2,counttriangle)
+            mycursor.execute(sql4 %val4)
+            temp4 += 1
+        clabel5.configure(background='green')
+        counttriangle = 0
+        
+    root.after(1000, counter_label1)
+            
+            
+    sql = "INSERT INTO logfile1 (Counter,Sinusoidal,Random,Sawtooth,Triangle) VALUES (%d,%2.6f,%2.6f,%2.6f,%2.6f)"
+    val = (counter,sine,random,sawtooth,triangle)
+    mycursor.execute(sql %val)
+
+    mydb.commit()
+            
+    timeArray = timeArray[-5:]
+    sineArray = sineArray[-5:]
+    randomArray = randomArray[-5:]
+    sawtoothArray = sawtoothArray[-5:]
+    triangleArray = triangleArray[-5:]
+    
+    a.plot(timeArray,sineArray,"b-*",timeArray,randomArray,"r-o")
+    a.set_xlabel("Time")
+    a.set_ylabel("Sinusoidal (Blue)        Random (Red)")
+    a.grid()
+    canvas.draw()
+    
+    
+    b.plot(timeArray,randomArray,marker='o')
+    b.set_xlabel("Time")
+    b.set_ylabel("Random")
+    b.grid()
+    canvas2.draw()
+    
+    c.plot(timeArray,sawtoothArray,"b-*",timeArray,triangleArray,"r-o")
+    c.set_xlabel("Time")
+    c.set_ylabel("Sawtooth (Blue)       Triangle (Red)")
+    c.grid()
+    canvas3.draw()
+    
+    a.cla()
+    b.cla()
+    c.cla()
+
+def on_enter(event):
+    button1['background']="#06a2db"
+    button1['fg']="white"
+    
+def on_leave(event):
+    button1['background']="white"
+    button1['fg']="#06a2db"
+    
+def on_enter2(event):
+    button2['background']="#06a2db"
+    button2['fg']="white"
+    
+def on_leave2(event):
+    button2['background']="white"
+    button2['fg']="#06a2db"
+    
+root.title("OPC Generator")
+
+button1 = tk.Button(root, text="Start", width=25, command=counter_label1, padx=6, pady=6, font='Helvetica 10 bold ')
+button1.configure(background="white", fg="#06a2db")
+button1.pack()
+button1.place(x=50,y=200)
+button1.bind("<Enter>",on_enter)
+button1.bind("<Leave>",on_leave)
+
+button2 = tk.Button(root, text="Stop", width=25, command=root.destroy, padx=6, pady=6, font='Helvetica 10 bold ')
+button2.configure(background="white", fg="#06a2db")
+button2.pack()
+button2.place(x=50,y=300)
+button2.bind("<Enter>",on_enter2)
+button2.bind("<Leave>",on_leave2)
+
+figure = Figure(figsize=(6,5),dpi=70)
+figure.suptitle("Sinusoidal v/s Random Visualization")
+
+figure2 = Figure(figsize=(6,5),dpi=70)
+figure2.suptitle("Random Visualization")
+
+figure3 = Figure(figsize=(6,5),dpi=70)
+figure3.suptitle("Sawtooth v/s Triangle Visualization")
+
+a = figure.add_subplot(111)
+b = figure2.add_subplot(111)
+c = figure3.add_subplot(111)
+
+canvas = FigureCanvasTkAgg(figure, master=root)
+canvas2 = FigureCanvasTkAgg(figure2, master=root)
+canvas3 = FigureCanvasTkAgg(figure3, master=root)
+    
+canvas.get_tk_widget().pack()
+canvas.get_tk_widget().place(x=10,y=450)
+canvas2.get_tk_widget().pack()
+canvas2.get_tk_widget().place(x=550,y=450)
+canvas3.get_tk_widget().pack()
+canvas3.get_tk_widget().place(x=1100,y=450)
+
+root.mainloop()