diff --git a/enviro/util_functions.py b/enviro/util_functions.py
index 846464b..8f166fe 100644
--- a/enviro/util_functions.py
+++ b/enviro/util_functions.py
@@ -1,7 +1,5 @@
 import machine
 
-# cpu temperature declaration
-CPU_TEMP = machine.ADC(machine.ADC.CORE_TEMP)
 ADC_VOLT_CONVERSATION = 3.3 / 65535