diff --git a/interface/src/app/main/CustomEntitiesDialog.tsx b/interface/src/app/main/CustomEntitiesDialog.tsx
index 4a62c84ac..79455de57 100644
--- a/interface/src/app/main/CustomEntitiesDialog.tsx
+++ b/interface/src/app/main/CustomEntitiesDialog.tsx
@@ -291,7 +291,7 @@ const CustomEntitiesDialog = ({
                       fullWidth
                       margin="normal"
                       type="number"
-                      inputProps={{ min: '1', max: '27', step: '1' }}
+                      inputProps={{ min: '1', max: String(256 - editItem.offset), step: '1' }}
                     />
                   </Grid>
                 )}
diff --git a/interface/src/app/settings/Settings.tsx b/interface/src/app/settings/Settings.tsx
index a510cb0d5..88e3872f6 100644
--- a/interface/src/app/settings/Settings.tsx
+++ b/interface/src/app/settings/Settings.tsx
@@ -127,7 +127,7 @@ const Settings: FC = () => {
           icon={ViewModuleIcon}
           bgcolor="#efc34b"
           label="Modules"
-          text="Activate or deactivate external modules"
+          text={LL.MODULES_1()}
           to="modules"
         />
 
diff --git a/interface/src/i18n/de/index.ts b/interface/src/i18n/de/index.ts
index f0405f0a3..e194d2260 100644
--- a/interface/src/i18n/de/index.ts
+++ b/interface/src/i18n/de/index.ts
@@ -71,7 +71,7 @@ const de: Translation = {
   TX_ISSUES: 'Tx-Probleme - versuchen Sie einen anderen Tx-Modus',
   DISCONNECTED: 'Getrennt',
   EMS_SCAN: 'Möchten Sie wirklich eine vollständige Gerätesuche des EMS-Busses starten?',
-  DATA_TRAFFIC: 'Data Traffic', // TODO Translate
+  DATA_TRAFFIC: 'Datenverkehr',
   EMS_DEVICE: 'EMS Gerät',
   SUCCESS: 'ERFOLG',
   FAIL: 'FEHLER',
@@ -91,7 +91,7 @@ const de: Translation = {
   NUM_SECONDS: '{num} Sekunde{{n}}',
   NUM_HOURS: '{num} Stunde{{n}}',
   NUM_MINUTES: '{num} Minute{{n}}',
-  APPLICATION: 'Anwendungseinstellungen',
+  APPLICATION: 'Anwendung',
   CUSTOMIZATIONS: 'Anpassungen',
   APPLICATION_RESTARTING: 'EMS-ESP startet neu',
   INTERFACE_BOARD_PROFILE: 'Interface Platinenprofil',
@@ -132,7 +132,7 @@ const de: Translation = {
   LOGGING: 'Protokollierung',
   LOG_HEX: 'EMS-Telegramme hexadezimal protokollieren',
   ENABLE_SYSLOG: 'Syslog aktivieren',
-  LOG_LEVEL: 'Log Level',
+  LOG_LEVEL: 'Protokollebene',
   MARK_INTERVAL: 'Intervallmarke',
   SECONDS: 'Sekunden',
   MINUTES: 'Minuten',
@@ -145,13 +145,13 @@ const de: Translation = {
   CUSTOMIZATIONS_FULL: 'Ausgewählte Entitäten haben das Limit überschritten. Bitte stapelweise speichern',
   CUSTOMIZATIONS_SAVED: 'Anpassungen gespeichert',
   CUSTOMIZATIONS_HELP_1: 'Wählen Sie ein Gerät aus und passen Sie die Entitäten mithilfe der Optionen an',
-  CUSTOMIZATIONS_HELP_2: 'als Favorit markieren',
+  CUSTOMIZATIONS_HELP_2: 'Als Favorit markieren',
   CUSTOMIZATIONS_HELP_3: 'Schreibaktion deaktivieren',
   CUSTOMIZATIONS_HELP_4: 'von MQTT und API ausschließen',
   CUSTOMIZATIONS_HELP_5: 'Aus dem Kontrollzentrum ausblenden',
   CUSTOMIZATIONS_HELP_6: 'Aus dem Speicher löschen',
   SELECT_DEVICE: 'Wählen Sie ein Gerät aus',
-  SET_ALL: 'setzen Sie alle',
+  SET_ALL: 'Setzen Sie alle',
   OPTIONS: 'Optionen',
   NAME: 'Name',
   CUSTOMIZATIONS_RESET: 'Möchten Sie wirklich alle Anpassungen entfernen, einschließlich der benutzerdefinierten Einstellungen der Temperatur- und Analogsensoren?',
@@ -167,7 +167,7 @@ const de: Translation = {
   FAILED: 'gescheitert',
   SUCCESSFUL: 'erfolgreich',
   SYSTEM: 'System',
-  LOG_OF: '{0} Log',
+  LOG_OF: '{0}protokoll',
   STATUS_OF: '{0} Status',
   UPLOAD_DOWNLOAD: 'Hoch-/Herunterladen',
   VERSION_ON: 'Sie verwenden derzeit',
@@ -199,7 +199,7 @@ const de: Translation = {
   ERROR: 'Unerwarteter Fehler, bitter versuchen Sie es erneut',
   TIME_SET: 'Zeit gesetzt',
   MANAGE_USERS: 'Nutzerverwaltung',
-  IS_ADMIN: 'ist Admin',
+  IS_ADMIN: 'Ist Admin',
   USER_WARNING: 'Sie müssen mindestens einen Admin-Nutzer konfigurieren',
   ADD: 'Hinzufügen',
   ACCESS_TOKEN_FOR: 'Zugangs-Token für',
@@ -317,19 +317,20 @@ const de: Translation = {
   ACTIVELOW: 'Aktiv Negativ',
   UNCHANGED: 'Unverändert',
   ALWAYS: 'Immer',
-  ACTIVITY: 'Activity', // TODO translate
-  CONFIGURE: 'Configure {0}', // TODO translate
-  SYSTEM_MEMORY: 'System Memory', // TODO translate
-  APPLICATION_SETTINGS_1: 'Modify EMS-ESP Application Settings', // TODO translate
-  SECURITY_1: 'Add or remove users', // TODO translate
-  UPLOAD_DOWNLOAD_1: 'Upload/Download Settings and Firmware', // TODO translate
-  MODULES: 'Module', // TODO translate
-  MODULES_UPDATED: 'Modules updated', // TODO translate
-  MODULES_DESCRIPTION: 'Click on the Module to activate or de-activate EMS-ESP library modules', // TODO translate
-  MODULES_NONE: 'No external modules detected', // TODO translate
-  RENAME: 'Rename', // TODO translate
+  ACTIVITY: 'Aktivität',
+  CONFIGURE: 'Konfiguriere {0}',
+  SYSTEM_MEMORY: 'Systemspeicher',
+  APPLICATION_SETTINGS_1: 'Ändern Sie die EMS-ESP-Anwendungseinstellungen',
+  SECURITY_1: 'Benutzer hinzufügen oder entfernen',
+  UPLOAD_DOWNLOAD_1: 'Einstellungen und Firmware hochladen/herunterladen',
+  MODULES: 'Module',
+  MODULES_1: 'Externe Module aktivieren oder deaktivieren',
+  MODULES_UPDATED: 'Module aktualisiert',
+  MODULES_DESCRIPTION: 'Klicken Sie auf das Modul, um EMS-ESP-Bibliotheksmodule zu aktivieren oder zu deaktivieren',
+  MODULES_NONE: 'Keine externen Module erkannt',
+  RENAME: 'Umbenennen',
   ENABLE_MODBUS: 'Modbus aktivieren',
-  VIEW_LOG: 'View log to diagnose issues' // TODO translate
+  VIEW_LOG: 'Sehen Sie sich das Protokoll an, um Probleme zu diagnostizieren'
 };
 
 export default de;
diff --git a/interface/src/i18n/en/index.ts b/interface/src/i18n/en/index.ts
index 78086b8ff..5ff94cac4 100644
--- a/interface/src/i18n/en/index.ts
+++ b/interface/src/i18n/en/index.ts
@@ -324,6 +324,7 @@ const en: Translation = {
   SECURITY_1: 'Add or remove users',
   UPLOAD_DOWNLOAD_1: 'Upload/Download Settings and Firmware',
   MODULES: 'Modules',
+  MODULES_1: 'Activate or deactivate external modules',
   MODULES_UPDATED: 'Modules updated',
   MODULES_DESCRIPTION: 'Click on the Module to activate or de-activate EMS-ESP library modules',
   MODULES_NONE: 'No external modules detected',
diff --git a/interface/src/i18n/fr/index.ts b/interface/src/i18n/fr/index.ts
index 7a6d8c7fa..357448867 100644
--- a/interface/src/i18n/fr/index.ts
+++ b/interface/src/i18n/fr/index.ts
@@ -324,6 +324,7 @@ const fr: Translation = {
   SECURITY_1: 'Add or remove users', // TODO translate
   UPLOAD_DOWNLOAD_1: 'Upload/Download Settings and Firmware', // TODO translate
   MODULES: 'Module', // TODO translate
+  MODULES_1: 'Activer ou désactiver les modules externes', // TODO translate
   MODULES_UPDATED: 'Modules updated', // TODO translate
   MODULES_DESCRIPTION: 'Click on the Module to activate or de-activate EMS-ESP library modules', // TODO translate
   MODULES_NONE: 'No external modules detected', // TODO translate
diff --git a/interface/src/i18n/it/index.ts b/interface/src/i18n/it/index.ts
index ac0b40a65..3a13ec109 100644
--- a/interface/src/i18n/it/index.ts
+++ b/interface/src/i18n/it/index.ts
@@ -324,6 +324,7 @@ const it: Translation = {
   SECURITY_1: 'Add or remove users', // TODO translate
   UPLOAD_DOWNLOAD_1: 'Upload/Download Settings and Firmware', // TODO translate
   MODULES: 'Module', // TODO translate
+  MODULES_1: 'Attiva o disattiva i moduli esterni', // TODO translate
   MODULES_UPDATED: 'Modules updated', // TODO translate
   MODULES_DESCRIPTION: 'Click on the Module to activate or de-activate EMS-ESP library modules', // TODO translate
   MODULES_NONE: 'No external modules detected', // TODO translate
diff --git a/interface/src/i18n/nl/index.ts b/interface/src/i18n/nl/index.ts
index 68f7a7f0e..d2e559738 100644
--- a/interface/src/i18n/nl/index.ts
+++ b/interface/src/i18n/nl/index.ts
@@ -324,6 +324,7 @@ const nl: Translation = {
   SECURITY_1: 'Gebruikers toevoegen of verwijderen',
   UPLOAD_DOWNLOAD_1: 'Upload-/downloadinstellingen en firmware',
   MODULES: 'Module',
+  MODULES_1: 'Externe modules activeren of deactiveren', // TODO translate
   MODULES_UPDATED: 'Modules geüpdatet', 
   MODULES_DESCRIPTION: 'Klik op de module om EMS-ESP library modules te activeren of te deactiveren',
   MODULES_NONE: 'Geen externe modules gedetecteerd',
diff --git a/interface/src/i18n/no/index.ts b/interface/src/i18n/no/index.ts
index 64b213371..4a0ac7d3d 100644
--- a/interface/src/i18n/no/index.ts
+++ b/interface/src/i18n/no/index.ts
@@ -324,6 +324,7 @@ const no: Translation = {
   SECURITY_1: 'Add or remove users', // TODO translate
   UPLOAD_DOWNLOAD_1: 'Upload/Download Settings and Firmware', // TODO translate
   MODULES: 'Module', // TODO translate
+  MODULES_1: 'Aktiver eller deaktiver eksterne moduler', // TODO translate
   MODULES_UPDATED: 'Modules updated', // TODO translate
   MODULES_DESCRIPTION: 'Click on the Module to activate or de-activate EMS-ESP library modules', // TODO translate
   MODULES_NONE: 'No external modules detected', // TODO translate
diff --git a/interface/src/i18n/pl/index.ts b/interface/src/i18n/pl/index.ts
index 1801513ab..03f74c2ec 100644
--- a/interface/src/i18n/pl/index.ts
+++ b/interface/src/i18n/pl/index.ts
@@ -324,6 +324,7 @@ const pl: BaseTranslation = {
   SECURITY_1: 'Dodawanie i usuwanie użytkowników',
   UPLOAD_DOWNLOAD_1: 'Wysyłanie/pobieranie ustawień i firmware',
   MODULES: 'Module', // TODO translate
+  MODULES_1: 'Aktywuj lub dezaktywuj moduły zewnętrzne', // TODO translate
   MODULES_UPDATED: 'Modules updated', // TODO translate
   MODULES_DESCRIPTION: 'Click on the Module to activate or de-activate EMS-ESP library modules', // TODO translate
   MODULES_NONE: 'No external modules detected', // TODO translate
diff --git a/interface/src/i18n/sk/index.ts b/interface/src/i18n/sk/index.ts
index 62c991461..d1c9857d2 100644
--- a/interface/src/i18n/sk/index.ts
+++ b/interface/src/i18n/sk/index.ts
@@ -324,6 +324,7 @@ const sk: Translation = {
   SECURITY_1: 'Add or remove users', // TODO translate
   UPLOAD_DOWNLOAD_1: 'Upload/Download Settings and Firmware', // TODO translate
   MODULES: 'Module', // TODO translate
+  MODULES_1: 'Aktivujte alebo deaktivujte externé moduly', // TODO translate
   MODULES_UPDATED: 'Modules updated', // TODO translate
   MODULES_DESCRIPTION: 'Click on the Module to activate or de-activate EMS-ESP library modules', // TODO translate
   MODULES_NONE: 'No external modules detected', // TODO translate
diff --git a/interface/src/i18n/sv/index.ts b/interface/src/i18n/sv/index.ts
index 6026de769..760b648d9 100644
--- a/interface/src/i18n/sv/index.ts
+++ b/interface/src/i18n/sv/index.ts
@@ -324,6 +324,7 @@ const sv: Translation = {
   SECURITY_1: 'Add or remove users', // TODO translate
   UPLOAD_DOWNLOAD_1: 'Upload/Download Settings and Firmware', // TODO translate
   MODULES: 'Module', // TODO translate
+  MODULES_1: 'Aktivera eller avaktivera externa moduler', // TODO translate
   MODULES_UPDATED: 'Modules updated', // TODO translate
   MODULES_DESCRIPTION: 'Click on the Module to activate or de-activate EMS-ESP library modules', // TODO translate
   MODULES_NONE: 'No external modules detected', // TODO translate
diff --git a/interface/src/i18n/tr/index.ts b/interface/src/i18n/tr/index.ts
index 07c7b1f84..fdb9f8e1b 100644
--- a/interface/src/i18n/tr/index.ts
+++ b/interface/src/i18n/tr/index.ts
@@ -324,6 +324,7 @@ const tr: Translation = {
   SECURITY_1: 'Add or remove users', // TODO translate
   UPLOAD_DOWNLOAD_1: 'Upload/Download Settings and Firmware', // TODO translate
   MODULES: 'Module', // TODO translate
+  MODULES_1: 'Harici modülleri etkinleştirin veya devre dışı bırakın', // TODO translate
   MODULES_UPDATED: 'Modules updated', // TODO translate
   MODULES_DESCRIPTION: 'Click on the Module to activate or de-activate EMS-ESP library modules', // TODO translate
   MODULES_NONE: 'No external modules detected', // TODO translate
diff --git a/src/devices/thermostat.cpp b/src/devices/thermostat.cpp
index 3400b4c16..551b6dbb3 100644
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -1106,8 +1106,8 @@ void Thermostat::process_RC300Set(std::shared_ptr<const Telegram> telegram) {
     has_enumupdate(telegram, hc->reducemode, 5, 1); // 1-outdoor temp threshold, 2-room temp threshold, 3-reduced mode
     has_update(telegram, hc->reducetemp, 9);
     has_update(telegram, hc->noreducetemp, 12);
-    has_enumupdate(telegram, hc->switchProgMode, 13, 1); // 1-level, 2-absolute
     has_update(telegram, hc->remoteseltemp, 17);         // see https://github.com/emsesp/EMS-ESP32/issues/590
+    has_enumupdate(telegram, hc->switchProgMode, 19, 1); // 1-level, 2-absolute
     has_update(telegram, hc->boost, 23);
     has_update(telegram, hc->boosttime, 24);
     has_update(telegram, hc->cooling, 28);
@@ -2290,7 +2290,7 @@ bool Thermostat::set_switchProgMode(const char * value, const int8_t id) {
     if (!Helpers::value2enum(value, set, FL_(enum_switchProgMode))) {
         return false;
     }
-    write_command(set_typeids[hc->hc()], 13, set + 1, set_typeids[hc->hc()]);
+    write_command(set_typeids[hc->hc()], 19, set + 1, set_typeids[hc->hc()]);
     return true;
 }
 
@@ -4526,7 +4526,7 @@ void Thermostat::register_device_values_hc(std::shared_ptr<Thermostat::HeatingCi
         register_device_value(tag, &hc->coolondelay, DeviceValueType::UINT8, FL_(coolondelay), DeviceValueUOM::HOURS, MAKE_CF_CB(set_coolondelay), 1, 48);
         register_device_value(tag, &hc->cooloffdelay, DeviceValueType::UINT8, FL_(cooloffdelay), DeviceValueUOM::HOURS, MAKE_CF_CB(set_cooloffdelay), 1, 48);
         register_device_value(
-            tag, &hc->switchProgMode, DeviceValueType::ENUM, FL_(enum_switchProgMode), FL_(control), DeviceValueUOM::NONE, MAKE_CF_CB(set_switchProgMode));
+            tag, &hc->switchProgMode, DeviceValueType::ENUM, FL_(enum_switchProgMode), FL_(switchProgMode), DeviceValueUOM::NONE, MAKE_CF_CB(set_switchProgMode));
 
         break;
     case EMSdevice::EMS_DEVICE_FLAG_CRF:
diff --git a/src/locale_translations.h b/src/locale_translations.h
index 2f4fb023f..fbd7e455d 100644
--- a/src/locale_translations.h
+++ b/src/locale_translations.h
@@ -360,7 +360,7 @@ MAKE_TRANSLATION(maintenanceTime, "maintenancetime", "time to next maintenance",
 MAKE_TRANSLATION(emergencyOps, "emergencyops", "emergency operation", "Notoperation", "Noodoperatie", "Nöddrift", "praca w trybie awaryjnym", "nøddrift", "opération d'urgence", "acil durum çalışması", "operazione di emergenza", "núdzová prevádzka")
 MAKE_TRANSLATION(emergencyTemp, "emergencytemp", "emergency temperature", "Nottemperatur", "Noodtemperatuur", "Nöddrift temperatur", "temperatura w trybie awaryjnym", "nødtemperatur", "température d'urgence", "acil durum sıcaklığı", "temperatura di emergenza", "núdzová teplota")
 MAKE_TRANSLATION(pumpMode, "pumpmode", "boiler pump mode", "Kesselpumpen Modus", "Ketelpomp modus", "", "tryb pracy pompy kotła", "pumpemodus", "", "pompa modu", "modalità pompa caldaia", "režim kotlového čerpadla") // TODO translate
-MAKE_TRANSLATION(pumpCharacter, "pumpcharacter", "boiler pump characteristic", "boiler pump characteristic", "boiler pump characteristic", "boiler pump characteristic", "boiler pump characteristic", "boiler pump characteristic", "boiler pump characteristic", "boiler pump characteristic", "boiler pump characteristic", "boiler pump characteristic") // TODO translate
+MAKE_TRANSLATION(pumpCharacter, "pumpcharacter", "boiler pump characteristic", "Charakteristik der Kesselpumpe", "karakteristiek ketelpomp", "pannpumpsegenskaper", "charakterystyka pompy kotłowej", "kjelepumpekarakteristikk", "caractéristique de la pompe de la chaudière", "gazan nasosy", "caratteristica della pompa della caldaia", "charakteristika kotlového čerpadla") // TODO translate
 MAKE_TRANSLATION(headertemp, "headertemp", "low loss header", "Hydr. Weiche", "open verdeler", "", "sprzęgło hydrauliczne", "", "bouteille de déc. hydr.", "isı bloğu gidiş suyu sıc.", "comp. idr.", "nízkostratová hlavica") // TODO translate
 MAKE_TRANSLATION(heatblock, "heatblock", "heating block", "Wärmezelle", "Aanvoertemp. warmtecel", "", "blok grzewczy", "", "départ corps de chauffe", "Hid.denge kabı sıcaklığı", "mandata scamb. pr.", "vykurovací blok") // TODO translate
 
@@ -738,6 +738,7 @@ MAKE_TRANSLATION(hpcooling, "cooling", "cooling", "Kühlen", "Koelen", "Kyler",
 MAKE_TRANSLATION(coolstart, "coolstart", "cooling starttemp", "Kühlbetrieb ab") // TODO translate
 MAKE_TRANSLATION(coolondelay, "coolondelay", "cooling on delay", "Einschaltverzögerung Kühlen") // TODO translate
 MAKE_TRANSLATION(cooloffdelay, "cooloffdelay", "cooling off delay", "Ausschaltverzögerung Kühlen") // TODO translate
+MAKE_TRANSLATION(switchProgMode, "switchprogmode", "switch program mode", "Schaltprogram Modus") // TODO translate
 
 // heatpump and RC100H
 MAKE_TRANSLATION(airHumidity, "airhumidity", "relative air humidity", "relative Luftfeuchte", "Relatieve luchtvochtigheid", "Relativ Luftfuktighet", "wilgotność względna w pomieszczeniu", "luftfuktighet", "humidité relative air", "havadaki bağıl nem", "umidità relativa aria", "relatívna vlhkosť vzduchu")
diff --git a/src/web/WebCustomEntityService.cpp b/src/web/WebCustomEntityService.cpp
index 4ddacf70a..f9340eb63 100644
--- a/src/web/WebCustomEntityService.cpp
+++ b/src/web/WebCustomEntityService.cpp
@@ -68,6 +68,11 @@ void WebCustomEntity::read(WebCustomEntity & webEntity, JsonObject root) {
 StateUpdateResult WebCustomEntity::update(JsonObject root, WebCustomEntity & webCustomEntity) {
     // reset everything to start fresh
     Command::erase_device_commands(EMSdevice::DeviceType::CUSTOM);
+    for (CustomEntityItem & entityItem : webCustomEntity.customEntityItems) {
+        if (entityItem.raw) {
+            delete[] entityItem.raw;
+        }
+    }
     webCustomEntity.customEntityItems.clear();
     EMSESP::webCustomEntityService.ha_reset();
 
@@ -92,8 +97,10 @@ StateUpdateResult WebCustomEntity::update(JsonObject root, WebCustomEntity & web
                 entityItem.value_type = DeviceValueType::STRING;
                 entityItem.writeable  = true;
             }
-
-            if (entityItem.value_type == DeviceValueType::BOOL) {
+            entityItem.raw = nullptr;
+            if (entityItem.value_type == DeviceValueType::STRING) {
+                entityItem.raw = new uint8_t[(int)entityItem.factor + 1];
+            } else if (entityItem.value_type == DeviceValueType::BOOL) {
                 entityItem.value = EMS_VALUE_DEFAULT_BOOL;
             } else if (entityItem.value_type == DeviceValueType::INT8) {
                 entityItem.value = EMS_VALUE_DEFAULT_INT8;
@@ -136,19 +143,26 @@ bool WebCustomEntityService::command_setvalue(const char * value, const int8_t i
             if (entityItem.ram == 1) {
                 entityItem.data = value;
             } else if (entityItem.value_type == DeviceValueType::STRING) {
-                char telegram[84];
-                strlcpy(telegram, value, sizeof(telegram));
-                uint8_t data[EMS_MAX_TELEGRAM_LENGTH];
-                uint8_t count = 0;
-                char *  p     = strtok(telegram, " ,"); // delimiter
+                auto      telegram = strdup(value);
+                uint8_t * data     = new uint8_t[(strlen(telegram)) / 3 + 1];
+                uint8_t   count    = 0;
+                char *    p        = strtok(telegram, " ,"); // delimiter
                 while (p != nullptr) {
                     data[count++] = (uint8_t)strtol(p, 0, 16);
                     p             = strtok(nullptr, " ,");
                 }
-                if (count == 0) {
-                    return false;
+                free(telegram);
+                uint8_t   offset = entityItem.offset;
+                uint8_t * dat    = data;
+                while (count > 0) {
+                    uint8_t len = std::min((int)count, 25);
+                    EMSESP::send_write_request(entityItem.type_id, entityItem.device_id, offset, dat, len, 0);
+                    offset += len;
+                    count -= len;
+                    dat += len;
                 }
-                EMSESP::send_write_request(entityItem.type_id, entityItem.device_id, entityItem.offset, data, count, 0);
+                delete[] data;
+                return true;
             } else if (entityItem.value_type == DeviceValueType::BOOL) {
                 bool v;
                 if (!Helpers::value2bool(value, v)) {
@@ -558,18 +572,23 @@ bool WebCustomEntityService::get_value(std::shared_ptr<const Telegram> telegram)
     const uint8_t len[] = {1, 1, 1, 2, 2, 3, 3, 4};
     for (auto & entity : *customEntityItems_) {
         if (entity.value_type == DeviceValueType::STRING && telegram->type_id == entity.type_id && telegram->src == entity.device_id
-            && telegram->offset <= entity.offset && (telegram->offset + telegram->message_length) >= (entity.offset + (uint8_t)entity.factor)) {
-            auto data = Helpers::data_to_hex(telegram->message_data, (uint8_t)entity.factor);
-            if (entity.data != data) {
-                entity.data = data;
-                if (Mqtt::publish_single()) {
-                    publish_single(entity);
-                } else if (EMSESP::mqtt_.get_publish_onchange(0)) {
-                    has_change = true;
+            && telegram->offset >= entity.offset) {
+            auto length = std::min((int)telegram->offset - entity.offset + telegram->message_length, (int)entity.factor);
+            auto rest   = std::min((int)entity.factor - telegram->offset + entity.offset, (int)telegram->message_length);
+            if (rest > 0) {
+                memcpy(&entity.raw[telegram->offset - entity.offset], telegram->message_data, rest);
+                auto data = Helpers::data_to_hex(entity.raw, (uint8_t)length);
+                if (entity.data != data) {
+                    entity.data = data;
+                    if (Mqtt::publish_single()) {
+                        publish_single(entity);
+                    } else if (EMSESP::mqtt_.get_publish_onchange(0)) {
+                        has_change = true;
+                    }
+                    char cmd[COMMAND_MAX_LENGTH];
+                    snprintf(cmd, sizeof(cmd), "%s/%s", F_(custom), entity.name.c_str());
+                    EMSESP::webSchedulerService.onChange(cmd);
                 }
-                char cmd[COMMAND_MAX_LENGTH];
-                snprintf(cmd, sizeof(cmd), "%s/%s", F_(custom), entity.name.c_str());
-                EMSESP::webSchedulerService.onChange(cmd);
             }
         } else if (entity.value_type != DeviceValueType::STRING && telegram->type_id == entity.type_id && telegram->src == entity.device_id
                    && telegram->offset <= entity.offset && (telegram->offset + telegram->message_length) >= (entity.offset + len[entity.value_type])) {
diff --git a/src/web/WebCustomEntityService.h b/src/web/WebCustomEntityService.h
index 8fe70e3a3..4f67c2290 100644
--- a/src/web/WebCustomEntityService.h
+++ b/src/web/WebCustomEntityService.h
@@ -39,6 +39,7 @@ class CustomEntityItem {
     uint32_t    value;
     std::string data;
     uint8_t     ram;
+    uint8_t *   raw;
 };
 
 class WebCustomEntity {