diff --git a/BAC0/core/devices/local/factory.py b/BAC0/core/devices/local/factory.py
index fa6be587..31dc330f 100644
--- a/BAC0/core/devices/local/factory.py
+++ b/BAC0/core/devices/local/factory.py
@@ -328,7 +328,7 @@ def analog(**kwargs):
         "properties": {
             "units": "percent",
             # "eventState": EventState(),
-            # "covIncrement": 0.15,
+            "covIncrement": 0.15,
         },
         "presentValue": 0,
     }
diff --git a/tests/manual_test_cov.py b/tests/manual_test_cov.py
new file mode 100644
index 00000000..fd0032b0
--- /dev/null
+++ b/tests/manual_test_cov.py
@@ -0,0 +1,40 @@
+import asyncio
+import random
+
+from bacpypes3.primitivedata import Real
+
+import BAC0
+from BAC0.core.devices.local.factory import analog_value
+from BAC0.scripts.script_runner import run
+
+bacnet = None
+
+
+async def main():
+    async with BAC0.start() as bacnet:
+        device = BAC0.start(port=47809, deviceId=123)
+
+        new_obj = analog_value(presentValue=0)
+        new_obj.add_objects_to_application(device)
+
+        # From Server
+        dev_av = device.this_application.app.get_object_name("AV")
+        print(dev_av.covIncrement)
+
+        # From client
+        ip = device.localIPAddr.addrTuple[0]
+        boid = device.Boid
+        bacnet._log.info("Defining device with poll 0 so the AV won't get updated")
+        dev = await BAC0.device(f"{ip}:47809", boid, bacnet, poll=0)
+        av = dev["AV"]
+        bacnet._log.info("Subscribing to AV")
+        await dev["AV"].subscribe_cov(lifetime=90)
+
+        while True:
+            dev_av.presentValue = Real(random.randint(1, 100))
+            bacnet._log.info(f"Setting AV to {dev_av.presentValue}")
+            await asyncio.sleep(5)
+
+
+if __name__ == "__main__":
+    run(main, bacnet)
diff --git a/tests/manualtest_cov.py b/tests/manualtest_cov.py
deleted file mode 100644
index c5dc00c2..00000000
--- a/tests/manualtest_cov.py
+++ /dev/null
@@ -1,27 +0,0 @@
-import time
-
-
-import BAC0
-from BAC0.core.devices.local.models import analog_value
-
-device = BAC0.lite("192.168.211.55/24", deviceId=123)
-client = BAC0.lite("192.168.212.12/24")
-
-new_obj = analog_value()
-new_obj.add_objects_to_application(device)
-
-# From Server
-dev_av = device.this_application.get_object_name("AV")
-print(dev_av.covIncrement)
-
-# From client
-dev = dev = BAC0.device("192.168.211.55", 123, client, poll=0)
-av = dev["AV"]
-dev["AV"].subscribe_cov(lifetime=0)
-
-print()
-while True:
-    print(dev["AV"])
-    time.sleep(1)
-    dev["AV"] += 1
-    time.sleep(1)