diff --git a/relay.py b/relay.py
index 42af4b2..30434a7 100644
--- a/relay.py
+++ b/relay.py
@@ -5,16 +5,26 @@ import time
 import requests
 
 relay_pin = 11
-#GPIO.setmode(GPIO.BCM) # GPIO umbers instead of board numbers.
+#GPIO.setmode(GPIO.BCM) # GPIO numbers instead of board numbers.
 GPIO.setmode(GPIO.BOARD)
 GPIO.setup(relay_pin, GPIO.OUT)
 
+def get_api_url():
+    # Yes, I know I could do this better. Stop moaning.
+    if (device_id == "factory1"):
+        return "http://ritherdon.abbether.net/api/readings/add/1"
+    elif (device_id == "factory2"):
+        return "http://ritherdon.abbether.net/api/readings/add/2"
+      
+# Make sure this is valid.
+# api_url = "http://ritherdon.abbether.net/api/readings/add/1"
+api_url = get_api_url() # Saves having to do the if-check every call.
 
 def main():
     try:
         while True:
             # Make sure the U.R.L. is valid.
-            r = requests.get('http://ritherdon.abbether.net/api/readings/latest/1')
+            r = requests.get(api_url)
             # print(r.status_code) # For testing.
             data = r.json()
             # print(data) # For testing.