diff --git a/tasmota/i18n.h b/tasmota/i18n.h
index f2ca5ac65..a21734ae9 100644
--- a/tasmota/i18n.h
+++ b/tasmota/i18n.h
@@ -57,6 +57,7 @@
 #define D_JSON_DNSSERVER "DNSServer"
 #define D_JSON_DONE "Done"
 #define D_JSON_DOWNTIME "Downtime"
+#define D_JSON_EC "EC"
 #define D_JSON_ECO2 "eCO2"
 #define D_JSON_EMPTY "Empty"
 #define D_JSON_ENDDST "EndDST"           // End Daylight Savings Time
@@ -773,6 +774,7 @@ const char HTTP_SNS_POWER[]         PROGMEM = "{s}"     D_POWERUSAGE          "{
 const char HTTP_SNS_ENERGY_TOTAL[]  PROGMEM = "{s}"     D_ENERGY_TOTAL        "{m}%s " D_UNIT_KILOWATTHOUR        "{e}";
 const char HTTP_SNS_PH[]            PROGMEM = "{s}%s "  D_PH                  "{m}%s "                            "{e}";
 const char HTTP_SNS_ORP[]           PROGMEM = "{s}%s "  D_ORP                 "{m}%s " D_UNIT_MILLIVOLT           "{e}";
+const char HTTP_SNS_EC[]            PROGMEM = "{s}%s "  D_EC                  "{m}%s " D_UNIT_MICROSIEMENS_PER_CM "{e}";
 
 const char S_MAIN_MENU[]              PROGMEM = D_MAIN_MENU;
 const char S_CONFIGURATION[]          PROGMEM = D_CONFIGURATION;
diff --git a/tasmota/language/bg_BG.h b/tasmota/language/bg_BG.h
index 7e54d9435..59663bfa2 100644
--- a/tasmota/language/bg_BG.h
+++ b/tasmota/language/bg_BG.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS Сървър"
 #define D_DONE "Изпълнено"
 #define D_DST_TIME "Лятно време"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Емулация"
 #define D_ENABLED "Разрешен"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/cs_CZ.h b/tasmota/language/cs_CZ.h
index 62e3e04dd..ca1efaf6b 100644
--- a/tasmota/language/cs_CZ.h
+++ b/tasmota/language/cs_CZ.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Server DNS"
 #define D_DONE "Provedeno"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulace"
 #define D_ENABLED "Otevřený"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/de_DE.h b/tasmota/language/de_DE.h
index 248e0984b..f7d17cced 100644
--- a/tasmota/language/de_DE.h
+++ b/tasmota/language/de_DE.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS-Server"
 #define D_DONE "erledigt"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulation"
 #define D_ENABLED "aktiviert"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/el_GR.h b/tasmota/language/el_GR.h
index 9e5c3d5e2..e516c5348 100644
--- a/tasmota/language/el_GR.h
+++ b/tasmota/language/el_GR.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Διακομιστής DNS"
 #define D_DONE "Ολοκληρώθηκε"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Εξομoίωση"
 #define D_ENABLED "Ενεργό"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/en_GB.h b/tasmota/language/en_GB.h
index e15b03ba2..bf78441af 100644
--- a/tasmota/language/en_GB.h
+++ b/tasmota/language/en_GB.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS Server"
 #define D_DONE "Done"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulation"
 #define D_ENABLED "Enabled"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/es_ES.h b/tasmota/language/es_ES.h
index 54673f584..3d9fe8472 100644
--- a/tasmota/language/es_ES.h
+++ b/tasmota/language/es_ES.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Servidor DNS"
 #define D_DONE "Listo"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulación"
 #define D_ENABLED "Habilitado"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/fr_FR.h b/tasmota/language/fr_FR.h
index 62caf9a85..0ec56b863 100644
--- a/tasmota/language/fr_FR.h
+++ b/tasmota/language/fr_FR.h
@@ -82,6 +82,7 @@
 #define D_DNS_SERVER "Serveur DNS"
 #define D_DONE "Terminé"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Émulation"
 #define D_ENABLED "Activé"
@@ -743,6 +744,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/he_HE.h b/tasmota/language/he_HE.h
index a7723edcb..d4a4a9f4d 100644
--- a/tasmota/language/he_HE.h
+++ b/tasmota/language/he_HE.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS שרת"
 #define D_DONE "סיים"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "הדמיה"
 #define D_ENABLED "מאופשר"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/hu_HU.h b/tasmota/language/hu_HU.h
index affa62c19..a32f4ea24 100644
--- a/tasmota/language/hu_HU.h
+++ b/tasmota/language/hu_HU.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS szerver"
 #define D_DONE "Kész"
 #define D_DST_TIME "nyári idő"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emuláció"
 #define D_ENABLED "Engedélyezve"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/it_IT.h b/tasmota/language/it_IT.h
index f074a67e2..d169e7ae0 100644
--- a/tasmota/language/it_IT.h
+++ b/tasmota/language/it_IT.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Server DNS"
 #define D_DONE "Completato"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Tipo emulazione"
 #define D_ENABLED "Abilitato"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/ko_KO.h b/tasmota/language/ko_KO.h
index 61f2caee7..08eddb3fa 100644
--- a/tasmota/language/ko_KO.h
+++ b/tasmota/language/ko_KO.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS 서버"
 #define D_DONE "완료"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "에뮬레이션"
 #define D_ENABLED "사용"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "마이크로미터"
 #define D_UNIT_MICROSECOND "마이크로초"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/nl_NL.h b/tasmota/language/nl_NL.h
index 19287551b..9ce3012fa 100644
--- a/tasmota/language/nl_NL.h
+++ b/tasmota/language/nl_NL.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS Server"
 #define D_DONE "Klaar"
 #define D_DST_TIME "ZT"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulatie"
 #define D_ENABLED "Geactiveerd"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/pl_PL.h b/tasmota/language/pl_PL.h
index f785a31ff..2f5e6b72e 100644
--- a/tasmota/language/pl_PL.h
+++ b/tasmota/language/pl_PL.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Serwer DNS"
 #define D_DONE "Wykonane"
 #define D_DST_TIME "Czas DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulacja"
 #define D_ENABLED "Załączony"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/pt_BR.h b/tasmota/language/pt_BR.h
index 634199ba3..f1f900acf 100644
--- a/tasmota/language/pt_BR.h
+++ b/tasmota/language/pt_BR.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Servidor DNS"
 #define D_DONE "Concluído"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulação"
 #define D_ENABLED "Habilitado"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/pt_PT.h b/tasmota/language/pt_PT.h
index 49835816e..94daa7603 100644
--- a/tasmota/language/pt_PT.h
+++ b/tasmota/language/pt_PT.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Servidor DNS"
 #define D_DONE "Concluído"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulação"
 #define D_ENABLED "Habilitado"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/ro_RO.h b/tasmota/language/ro_RO.h
index b0ace2dbd..432e66877 100644
--- a/tasmota/language/ro_RO.h
+++ b/tasmota/language/ro_RO.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Server DNS"
 #define D_DONE "Terminat"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulație"
 #define D_ENABLED "Activat"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/ru_RU.h b/tasmota/language/ru_RU.h
index 2340710e9..83292385c 100644
--- a/tasmota/language/ru_RU.h
+++ b/tasmota/language/ru_RU.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS Сервер"
 #define D_DONE "Выполнено"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Эмуляция"
 #define D_ENABLED "Активно"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "мкг/м³"
 #define D_UNIT_MICROMETER "мкм"
 #define D_UNIT_MICROSECOND "мкс"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "мА"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "мм рт.ст."
diff --git a/tasmota/language/sk_SK.h b/tasmota/language/sk_SK.h
index 140214a56..7e8df3c03 100644
--- a/tasmota/language/sk_SK.h
+++ b/tasmota/language/sk_SK.h
@@ -87,6 +87,7 @@
 #define D_DNS_SERVER "Server DNS"
 #define D_DONE "Hotovo"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulácia"
 #define D_ENABLED "Otvorený"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/sv_SE.h b/tasmota/language/sv_SE.h
index 5edc4cc35..58283b3d5 100644
--- a/tasmota/language/sv_SE.h
+++ b/tasmota/language/sv_SE.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS-server"
 #define D_DONE "Gjort"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emulation"
 #define D_ENABLED "Aktiverad"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/tr_TR.h b/tasmota/language/tr_TR.h
index b6d0917fe..37564aa84 100644
--- a/tasmota/language/tr_TR.h
+++ b/tasmota/language/tr_TR.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS Sunucu"
 #define D_DONE "Tamam"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Emülasyon"
 #define D_ENABLED "Etkin"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/uk_UA.h b/tasmota/language/uk_UA.h
index 7e38ad2ba..b926afada 100644
--- a/tasmota/language/uk_UA.h
+++ b/tasmota/language/uk_UA.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Сервер DNS"
 #define D_DONE "Виконано"
 #define D_DST_TIME "Літній час"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "Емуляція"
 #define D_ENABLED "Увімкнено"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µг/м³"
 #define D_UNIT_MICROMETER                "µм"
 #define D_UNIT_MICROSECOND               "µС"
+#define D_UNIT_MICROSIEMENS_PER_CM       "µS/cm"
 #define D_UNIT_MILLIAMPERE               "мА"
 #define D_UNIT_MILLIMETER                "мм"
 #define D_UNIT_MILLIMETER_MERCURY        "ммHg"
diff --git a/tasmota/language/vi_VN.h b/tasmota/language/vi_VN.h
index cf32f7194..eee00907c 100644
--- a/tasmota/language/vi_VN.h
+++ b/tasmota/language/vi_VN.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "Máy chủ DNS"
 #define D_DONE "Hoàn thành"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO2"
 #define D_EMULATION "Mô phỏng"
 #define D_ENABLED "Kích hoạt"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "µg/m³"
 #define D_UNIT_MICROMETER "µm"
 #define D_UNIT_MICROSECOND "µs"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "mA"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/language/zh_CN.h b/tasmota/language/zh_CN.h
index 805422779..9a232796a 100644
--- a/tasmota/language/zh_CN.h
+++ b/tasmota/language/zh_CN.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS服务器"
 #define D_DONE "完成"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "设备模拟"
 #define D_ENABLED "启用"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "微克/立方米"
 #define D_UNIT_MICROMETER "微米"
 #define D_UNIT_MICROSECOND "微秒"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "毫安"
 #define D_UNIT_MILLIMETER "毫米"
 #define D_UNIT_MILLIMETER_MERCURY "毫米汞柱"
diff --git a/tasmota/language/zh_TW.h b/tasmota/language/zh_TW.h
index d3fa4767b..fb93ef634 100644
--- a/tasmota/language/zh_TW.h
+++ b/tasmota/language/zh_TW.h
@@ -86,6 +86,7 @@
 #define D_DNS_SERVER "DNS伺服器"
 #define D_DONE "完成"
 #define D_DST_TIME "DST"
+#define D_EC "EC"
 #define D_ECO2 "eCO₂"
 #define D_EMULATION "模擬"
 #define D_ENABLED "已啟用"
@@ -747,6 +748,7 @@
 #define D_UNIT_MICROGRAM_PER_CUBIC_METER "微克/立方公尺"
 #define D_UNIT_MICROMETER "微米"
 #define D_UNIT_MICROSECOND "微秒"
+#define D_UNIT_MICROSIEMENS_PER_CM "µS/cm"
 #define D_UNIT_MILLIAMPERE "毫安培"
 #define D_UNIT_MILLIMETER "mm"
 #define D_UNIT_MILLIMETER_MERCURY "mmHg"
diff --git a/tasmota/my_user_config.h b/tasmota/my_user_config.h
index 28c075d9f..50414dba7 100644
--- a/tasmota/my_user_config.h
+++ b/tasmota/my_user_config.h
@@ -566,6 +566,7 @@
 //  #define USE_EZOORP                             // [I2cDriver55] Enable support for EZO's ORP sensor (+0k3 code) - Shared EZO code required for any EZO device (+1k2 code)
 //  #define USE_EZORTD                             // [I2cDriver55] Enable support for EZO's RTD sensor (+0k2 code) - Shared EZO code required for any EZO device (+1k2 code)
 //  #define USE_EZOHUM                             // [I2cDriver55] Enable support for EZO's HUM sensor (+0k3 code) - Shared EZO code required for any EZO device (+1k2 code)
+//  #define USE_EZOEC                              // [I2cDriver55] Enable support for EZO's EC sensor (+0k3 code) - Shared EZO code required for any EZO device (+1k2 code)
 
 //  #define USE_DISPLAY                            // Add I2C Display Support (+2k code)
     #define USE_DISPLAY_MODES1TO5                // Enable display mode 1 to 5 in addition to mode 0
diff --git a/tasmota/xsns_78_ezo.ino b/tasmota/xsns_78_ezo.ino
index 60d13f971..1507a36c4 100644
--- a/tasmota/xsns_78_ezo.ino
+++ b/tasmota/xsns_78_ezo.ino
@@ -17,7 +17,7 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifdef USE_I2C
-#if defined(USE_EZOPH) || defined(USE_EZOORP) || defined(USE_EZORTD) || defined(USE_EZOHUM)
+#if defined(USE_EZOPH) || defined(USE_EZOORP) || defined(USE_EZORTD) || defined(USE_EZOHUM) || defined(USE_EZOEC)
 
 #define D_EZO_DELAY   300   // Minimum delay for any instruction
 #define D_EZO_MAX_BUF 40    // Maximum response
diff --git a/tasmota/xsns_78_ezoec.ino b/tasmota/xsns_78_ezoec.ino
new file mode 100644
index 000000000..8d5a22912
--- /dev/null
+++ b/tasmota/xsns_78_ezoec.ino
@@ -0,0 +1,56 @@
+/*
+  xsns_78_ezoph.ino - EZO EC I2C EC sensor support for Tasmota
+
+  Copyright (C) 2020  Christopher Tremblay
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifdef USE_I2C
+#ifdef USE_EZOEC
+
+#define EZO_EC_READ_LATENCY   600
+
+struct EZOEC : public EZOStruct {
+  EZOEC(uint32_t addr) : EZOStruct(addr), EC(NAN) {}
+
+  virtual void ProcessMeasurement(void)
+  {
+    char data[D_EZO_MAX_BUF];
+
+    EZOStruct::ProcessMeasurement(data, sizeof(data), EZO_EC_READ_LATENCY);
+    EC = CharToFloat(data);
+  }
+
+  virtual void Show(bool json, const char *name)
+  {
+    char str[6];
+    dtostrfd(EC, 2, str);
+
+    if (json) {
+      ResponseAppend_P(PSTR(",\"%s\":{\"" D_JSON_EC "\":%s}" ), name, str);
+    }
+#ifdef USE_WEBSERVER  
+    else {
+      WSContentSend_PD(HTTP_SNS_EC, name, str);
+#endif  // USE_WEBSERVER
+    }
+  }
+
+private:
+  float     EC;
+};
+
+#endif  // USE_EZOEC
+#endif  // USE_I2C
diff --git a/tasmota/xsns_78_xezo.ino b/tasmota/xsns_78_xezo.ino
index b90fcbe0d..659d3efa3 100644
--- a/tasmota/xsns_78_xezo.ino
+++ b/tasmota/xsns_78_xezo.ino
@@ -18,10 +18,10 @@
 */
 
 #ifdef USE_I2C
-#if defined(USE_EZOPH) || defined(USE_EZOORP) || defined(USE_EZORTD) || defined(USE_EZOHUM)
+#if defined(USE_EZOPH) || defined(USE_EZOORP) || defined(USE_EZORTD) || defined(USE_EZOHUM) || defined(USE_EZOEC)
 
 #define XSNS_78 78
-#define XI2C_55 55    // See I2CDEVICES.md
+#define XI2C_55 55        // See I2CDEVICES.md
 
 #define EZO_ADDR_0  0x61  // First EZO address
 #define EZO_ADDR_n  16    // Number of ports for use with EZO devices
@@ -57,7 +57,9 @@ const char EZO_ORP_NAME[] PROGMEM = "ORP";
 #ifdef USE_EZOPH
 const char EZO_PH_NAME[]  PROGMEM = "pH";
 #endif
-//const char EZO_EC_NAME[]  PROGMEM = "EC";
+#ifdef USE_EZOEC
+const char EZO_EC_NAME[]  PROGMEM = "EC";
+#endif
 #ifdef USE_EZORTD
 const char EZO_RTD_NAME[] PROGMEM = "RTD";
 #endif
@@ -86,7 +88,12 @@ const char *const EZOSupport[EZO_ADDR_n] PROGMEM = {
   EZO_EMPTY,
 #endif
 
+#ifdef USE_EZOEC
+  EZO_EC_NAME,
+#else
   EZO_EMPTY,
+#endif
+
   EZO_EMPTY,
 
 #ifdef USE_EZORTD
@@ -248,6 +255,11 @@ private:
                     sensor[count] = new EZOpH(addr);
                     break;
 #endif
+#ifdef USE_EZOEC
+                  case EZO_EC:
+                    sensor[count] = new EZOEC(addr);
+                    break;
+#endif
 #ifdef USE_EZORTD
                   case EZO_RTD:
                     sensor[count] = new EZORTD(addr);