diff --git a/sonoff/user_config.h b/sonoff/user_config.h
index 857ae53ef..0d3409933 100644
--- a/sonoff/user_config.h
+++ b/sonoff/user_config.h
@@ -279,9 +279,9 @@
   #define CO2_HIGH             1200              // Above this CO2 value show red light (needs PWM or WS2812 RG(B) led and enable with SetOption18 1)
 #define USE_PMS5003                              // Add support for PMS5003 and PMS7003 particle concentration sensor (+1k3 code)
 #define USE_NOVA_SDS                             // Add support for SDS011 and SDS021 particle concentration sensor (+0k7 code)
-#define USE_PZEM004T                             // Add support for PZEM004T Energy monitor (+2k code)
+//#define USE_PZEM004T                             // Add support for PZEM004T Energy monitor (+2k code)
 #define USE_SERIAL_BRIDGE                        // Add support for software Serial Bridge (+0k8 code)
-#define USE_SDM120                               // Add support for Eastron SDM120-Modbus energy meter (+1k2 code)
+//#define USE_SDM120                               // Add support for Eastron SDM120-Modbus energy meter (+1k2 code)
 
 // -- Low level interface devices -----------------
 //#define USE_IR_REMOTE                            // Send IR remote commands using library IRremoteESP8266 and ArduinoJson (+4k code, 0k3 mem, 48 iram)