diff --git a/README.md b/README.md
index 35b77bf4..fed9fc77 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ Sends text raw data as difined in VE.Direct spec.
 * Show inverters internal event log
 * Show inverter information like firmware version, firmware build date, hardware revision and hardware version
 * Show and set the current inverter limit
-* Function to turn the inverter off an on
+* Function to turn the inverter off and on
 * Uses ESP32 microcontroller and NRF24L01+
 * Multi-Inverter support
 * MQTT support (with TLS)
diff --git a/docs/MQTT_Topics.md b/docs/MQTT_Topics.md
index 6d9243c1..7ee28662 100644
--- a/docs/MQTT_Topics.md
+++ b/docs/MQTT_Topics.md
@@ -61,6 +61,7 @@ cmd topics are used to set values. Status topics are updated from values set in
 | Topic                                     | R / W | Description                                          | Value / Unit               |
 | ----------------------------------------- | ----- | ---------------------------------------------------- | -------------------------- |
 | [serial]/status/limit_relative            | R     | Current applied production limit of the inverter     | % of total possible output |
+| [serial]/status/limit_absolute            | R     | Current applied production limit of the inverter     | Watt (W)                   |
 | [serial]/status/reachable                 | R     | Indicates whether the inverter is reachable          | 0 or 1                     |
 | [serial]/status/producing                 | R     | Indicates whether the inverter is producing AC power | 0 or 1                     |
 | [serial]/cmd/limit_persistent_relative    | W     | Set the inverter limit as a percentage of total production capability. The  value will survive the night without power. The updated value will show up in the web GUI and limit_relative topic immediatly. | %                          |
diff --git a/lib/Hoymiles/src/HoymilesRadio.cpp b/lib/Hoymiles/src/HoymilesRadio.cpp
index 9764ea2a..8e26caa0 100644
--- a/lib/Hoymiles/src/HoymilesRadio.cpp
+++ b/lib/Hoymiles/src/HoymilesRadio.cpp
@@ -48,6 +48,7 @@ void HoymilesRadio::loop()
                 f = _rxBuffer.getFront();
                 memset(f->fragment, 0xcc, MAX_RF_PAYLOAD_SIZE);
                 f->len = _radio->getDynamicPayloadSize();
+                f->channel = _radio->getChannel();
                 if (f->len > MAX_RF_PAYLOAD_SIZE)
                     f->len = MAX_RF_PAYLOAD_SIZE;
 
@@ -69,7 +70,9 @@ void HoymilesRadio::loop()
 
                 if (nullptr != inv) {
                     // Save packet in inverter rx buffer
-                    dumpBuf("RX ", f->fragment, f->len);
+                    char buf[30];
+                    snprintf(buf, sizeof(buf), "RX Channel: %d --> ", f->channel);
+                    dumpBuf(buf, f->fragment, f->len);
                     inv->addRxFragment(f->fragment, f->len);
                 } else {
                     Serial.println(F("Inverter Not found!"));
@@ -161,6 +164,11 @@ bool HoymilesRadio::isIdle()
     return !_busyFlag;
 }
 
+bool HoymilesRadio::isConnected()
+{
+    return _radio->isChipConnected();
+}
+
 void HoymilesRadio::openReadingPipe()
 {
     serial_u s;
diff --git a/lib/Hoymiles/src/HoymilesRadio.h b/lib/Hoymiles/src/HoymilesRadio.h
index 9d6062cc..b60468c9 100644
--- a/lib/Hoymiles/src/HoymilesRadio.h
+++ b/lib/Hoymiles/src/HoymilesRadio.h
@@ -46,9 +46,7 @@ public:
     void setDtuSerial(uint64_t serial);
 
     bool isIdle();
-    void sendEsbPacket(CommandAbstract* cmd);
-    void sendRetransmitPacket(uint8_t fragment_id);
-    void sendLastPacketAgain();
+    bool isConnected();
 
     template <typename T>
     T* enqueCommand()
@@ -68,6 +66,10 @@ private:
     bool checkFragmentCrc(fragment_t* fragment);
     void dumpBuf(const char* info, uint8_t buf[], uint8_t len);
 
+    void sendEsbPacket(CommandAbstract* cmd);
+    void sendRetransmitPacket(uint8_t fragment_id);
+    void sendLastPacketAgain();
+
     std::unique_ptr<SPIClass> _hspi;
     std::unique_ptr<RF24> _radio;
     uint8_t _rxChLst[5] = { 3, 23, 40, 61, 75 };
diff --git a/lib/Hoymiles/src/commands/ActivePowerControlCommand.cpp b/lib/Hoymiles/src/commands/ActivePowerControlCommand.cpp
index 9c004087..05e671da 100644
--- a/lib/Hoymiles/src/commands/ActivePowerControlCommand.cpp
+++ b/lib/Hoymiles/src/commands/ActivePowerControlCommand.cpp
@@ -49,7 +49,12 @@ bool ActivePowerControlCommand::handleResponse(InverterAbstract* inverter, fragm
     if ((getType() == PowerLimitControlType::RelativNonPersistent) || (getType() == PowerLimitControlType::RelativPersistent)) {
         inverter->SystemConfigPara()->setLimitPercent(getLimit());
     } else {
-        // TODO(tbnobody): Not implemented yet because we only can publish the percentage value
+        uint16_t max_power = inverter->DevInfo()->getMaxPower();
+        if (max_power > 0) {
+            inverter->SystemConfigPara()->setLimitPercent(static_cast<float>(getLimit()) / max_power * 100);
+        } else {
+            // TODO(tbnobody): Not implemented yet because we only can publish the percentage value
+        }
     }
     inverter->SystemConfigPara()->setLastUpdateCommand(millis());
     inverter->SystemConfigPara()->setLastLimitCommandSuccess(CMD_OK);
diff --git a/lib/Hoymiles/src/commands/AlarmDataCommand.cpp b/lib/Hoymiles/src/commands/AlarmDataCommand.cpp
index 28633dba..e55ddd0f 100644
--- a/lib/Hoymiles/src/commands/AlarmDataCommand.cpp
+++ b/lib/Hoymiles/src/commands/AlarmDataCommand.cpp
@@ -6,7 +6,7 @@ AlarmDataCommand::AlarmDataCommand(uint64_t target_address, uint64_t router_addr
 {
     setTime(time);
     setDataType(0x11);
-    setTimeout(500);
+    setTimeout(600);
 }
 
 String AlarmDataCommand::getCommandName()
diff --git a/lib/Hoymiles/src/inverters/HM_1CH.cpp b/lib/Hoymiles/src/inverters/HM_1CH.cpp
index f4a31d60..730a63da 100644
--- a/lib/Hoymiles/src/inverters/HM_1CH.cpp
+++ b/lib/Hoymiles/src/inverters/HM_1CH.cpp
@@ -5,7 +5,22 @@ HM_1CH::HM_1CH(uint64_t serial)
 
 bool HM_1CH::isValidSerial(uint64_t serial)
 {
-    return serial >= 0x112100000000 && serial <= 0x112199999999;
+    // serial >= 0x112100000000 && serial <= 0x112199999999
+
+    uint8_t preId[2];
+    preId[0] = (uint8_t)(serial >> 40);
+    preId[1] = (uint8_t)(serial >> 32);
+
+    if ((uint8_t)(((((uint16_t)preId[0] << 8) | preId[1]) >> 4) & 0xff) == 0x12) {
+        return true;
+    }
+
+    if ((((preId[1] & 0xf0) == 0x10) || ((preId[1] & 0xf0) == 0x20))
+        && (((preId[0] == 0x10) && (preId[1] == 0x22)) || ((preId[0] == 0x11) && (preId[1] == 0x21)))) {
+        return true;
+    }
+
+    return false;
 }
 
 String HM_1CH::typeName()
diff --git a/lib/Hoymiles/src/inverters/HM_2CH.cpp b/lib/Hoymiles/src/inverters/HM_2CH.cpp
index 2ec32d55..6730a259 100644
--- a/lib/Hoymiles/src/inverters/HM_2CH.cpp
+++ b/lib/Hoymiles/src/inverters/HM_2CH.cpp
@@ -5,7 +5,22 @@ HM_2CH::HM_2CH(uint64_t serial)
 
 bool HM_2CH::isValidSerial(uint64_t serial)
 {
-    return serial >= 0x114100000000 && serial <= 0x114199999999;
+    // serial >= 0x114100000000 && serial <= 0x114199999999
+
+    uint8_t preId[2];
+    preId[0] = (uint8_t)(serial >> 40);
+    preId[1] = (uint8_t)(serial >> 32);
+
+    if ((uint8_t)(((((uint16_t)preId[0] << 8) | preId[1]) >> 4) & 0xff) == 0x14) {
+        return true;
+    }
+
+    if ((((preId[1] & 0xf0) == 0x30) || ((preId[1] & 0xf0) == 0x40))
+        && (((preId[0] == 0x10) && (preId[1] == 0x42)) || ((preId[0] == 0x11) && (preId[1] == 0x41)))) {
+        return true;
+    }
+
+    return false;
 }
 
 String HM_2CH::typeName()
diff --git a/lib/Hoymiles/src/inverters/HM_4CH.cpp b/lib/Hoymiles/src/inverters/HM_4CH.cpp
index 0773d9ad..af8548f5 100644
--- a/lib/Hoymiles/src/inverters/HM_4CH.cpp
+++ b/lib/Hoymiles/src/inverters/HM_4CH.cpp
@@ -5,12 +5,27 @@ HM_4CH::HM_4CH(uint64_t serial)
 
 bool HM_4CH::isValidSerial(uint64_t serial)
 {
-    return serial >= 0x116100000000 && serial <= 0x116199999999;
+    // serial >= 0x116100000000 && serial <= 0x116199999999
+
+    uint8_t preId[2];
+    preId[0] = (uint8_t)(serial >> 40);
+    preId[1] = (uint8_t)(serial >> 32);
+
+    if ((uint8_t)(((((uint16_t)preId[0] << 8) | preId[1]) >> 4) & 0xff) == 0x16) {
+        return true;
+    }
+
+    if ((((preId[1] & 0xf0) == 0x50) || ((preId[1] & 0xf0) == 0x60))
+        && (((preId[0] == 0x10) && (preId[1] == 0x62)) || ((preId[0] == 0x11) && (preId[1] == 0x61)))) {
+        return true;
+    }
+
+    return false;
 }
 
 String HM_4CH::typeName()
 {
-    return String(F("HM-1200, HM-1500"));
+    return String(F("HM-1000, HM-1200, HM-1500"));
 }
 
 const byteAssign_t* HM_4CH::getByteAssignment()
diff --git a/lib/Hoymiles/src/parser/DevInfoParser.cpp b/lib/Hoymiles/src/parser/DevInfoParser.cpp
index ce32bfc7..864e7c0e 100644
--- a/lib/Hoymiles/src/parser/DevInfoParser.cpp
+++ b/lib/Hoymiles/src/parser/DevInfoParser.cpp
@@ -1,6 +1,23 @@
 #include "DevInfoParser.h"
 #include <cstring>
 
+typedef struct {
+    uint8_t hwPart[3];
+    uint16_t maxPower;
+    const char* modelName;
+} devInfo_t;
+
+const devInfo_t devInfo[] = {
+    { { 0x10, 0x10, 0x10 }, 300, "HM-300" },
+    { { 0x10, 0x10, 0x20 }, 350, "HM-350" },
+    { { 0x10, 0x10, 0x40 }, 400, "HM-400" },
+    { { 0x10, 0x11, 0x10 }, 600, "HM-600" },
+    { { 0x10, 0x11, 0x20 }, 700, "HM-700" },
+    { { 0x10, 0x11, 0x40 }, 800, "HM-800" },
+    { { 0x10, 0x12, 0x10 }, 1200, "HM-1200" },
+    { { 0x10, 0x12, 0x30 }, 1500, "HM-1500" }
+};
+
 void DevInfoParser::clearBufferAll()
 {
     memset(_payloadDevInfoAll, 0, DEV_INFO_SIZE);
@@ -92,9 +109,40 @@ uint32_t DevInfoParser::getHwPartNumber()
 
 String DevInfoParser::getHwVersion()
 {
-    char buf[6];
-    snprintf(buf, sizeof(buf), "%02X.%02X", _payloadDevInfoSimple[6], _payloadDevInfoSimple[7]);
-    return String(buf);
+    char buf[8];
+    snprintf(buf, sizeof(buf), "%02d.%02d", _payloadDevInfoSimple[6], _payloadDevInfoSimple[7]);
+    return buf;
+}
+
+uint16_t DevInfoParser::getMaxPower()
+{
+    uint8_t idx = getDevIdx();
+    if (idx == 0xff) {
+        return 0;
+    }
+    return devInfo[idx].maxPower;
+}
+
+String DevInfoParser::getHwModelName()
+{
+    uint8_t idx = getDevIdx();
+    if (idx == 0xff) {
+        return "";
+    }
+    return devInfo[idx].modelName;
+}
+
+uint8_t DevInfoParser::getDevIdx()
+{
+     uint8_t pos;
+    for (pos = 0; pos < sizeof(devInfo) / sizeof(devInfo_t); pos++) {
+         if (devInfo[pos].hwPart[0] == _payloadDevInfoSimple[2]
+            && devInfo[pos].hwPart[1] == _payloadDevInfoSimple[3]
+            && devInfo[pos].hwPart[2] == _payloadDevInfoSimple[4]) {
+            return pos;
+        }
+    }
+    return 0xff;
 }
 
 /* struct tm to seconds since Unix epoch */
diff --git a/lib/Hoymiles/src/parser/DevInfoParser.h b/lib/Hoymiles/src/parser/DevInfoParser.h
index 46065861..a4ce10e7 100644
--- a/lib/Hoymiles/src/parser/DevInfoParser.h
+++ b/lib/Hoymiles/src/parser/DevInfoParser.h
@@ -25,8 +25,12 @@ public:
     uint32_t getHwPartNumber();
     String getHwVersion();
 
+    uint16_t getMaxPower();
+    String getHwModelName();
+
 private:
     time_t timegm(struct tm* tm);
+    uint8_t getDevIdx();
 
     uint32_t _lastUpdateAll = 0;
     uint32_t _lastUpdateSimple = 0;
diff --git a/lib/Hoymiles/src/types.h b/lib/Hoymiles/src/types.h
index 43c6ffee..a0883a0b 100644
--- a/lib/Hoymiles/src/types.h
+++ b/lib/Hoymiles/src/types.h
@@ -14,5 +14,6 @@ typedef struct {
     uint8_t mainCmd;
     uint8_t fragment[MAX_RF_PAYLOAD_SIZE];
     uint8_t len;
+    uint8_t channel;
     bool wasReceived;
 } fragment_t;
diff --git a/src/MqttPublishing.cpp b/src/MqttPublishing.cpp
index 9d569012..fc74b785 100644
--- a/src/MqttPublishing.cpp
+++ b/src/MqttPublishing.cpp
@@ -65,6 +65,11 @@ void MqttPublishingClass::loop()
             if (inv->SystemConfigPara()->getLastUpdate() > 0) {
                 // Limit
                 MqttSettings.publish(subtopic + "/status/limit_relative", String(inv->SystemConfigPara()->getLimitPercent()));
+
+                uint16_t maxpower = inv->DevInfo()->getMaxPower();
+                if (maxpower > 0) {
+                    MqttSettings.publish(subtopic + "/status/limit_absolute", String(inv->SystemConfigPara()->getLimitPercent() * maxpower / 100));
+                }
             }
 
             MqttSettings.publish(subtopic + "/status/reachable", String(inv->isReachable()));
diff --git a/src/WebApi_devinfo.cpp b/src/WebApi_devinfo.cpp
index c9a18436..7795f567 100644
--- a/src/WebApi_devinfo.cpp
+++ b/src/WebApi_devinfo.cpp
@@ -41,6 +41,7 @@ void WebApiDevInfoClass::onDevInfoStatus(AsyncWebServerRequest* request)
         devInfoObj[F("fw_build_version")] = inv->DevInfo()->getFwBuildVersion();
         devInfoObj[F("hw_part_number")] = inv->DevInfo()->getHwPartNumber();
         devInfoObj[F("hw_version")] = inv->DevInfo()->getHwVersion();
+        devInfoObj[F("hw_model_name")] = inv->DevInfo()->getHwModelName();
 
         char timebuffer[32];
         const time_t t = inv->DevInfo()->getFwBuildDateTime();
diff --git a/src/WebApi_limit.cpp b/src/WebApi_limit.cpp
index 56a3f0fc..fda74c55 100644
--- a/src/WebApi_limit.cpp
+++ b/src/WebApi_limit.cpp
@@ -35,7 +35,7 @@ void WebApiLimitClass::onLimitStatus(AsyncWebServerRequest* request)
             ((uint32_t)((inv->serial() >> 32) & 0xFFFFFFFF)),
             ((uint32_t)(inv->serial() & 0xFFFFFFFF)));
 
-        root[buffer]["limit"] = inv->SystemConfigPara()->getLimitPercent();
+        root[buffer]["limit_relative"] = inv->SystemConfigPara()->getLimitPercent();
 
         LastCommandSuccess status = inv->SystemConfigPara()->getLastLimitCommandSuccess();
         String limitStatus = "Unknown";
diff --git a/src/WebApi_sysstatus.cpp b/src/WebApi_sysstatus.cpp
index 1500a6da..36f71edf 100644
--- a/src/WebApi_sysstatus.cpp
+++ b/src/WebApi_sysstatus.cpp
@@ -7,6 +7,7 @@
 #include "AsyncJson.h"
 #include "Configuration.h"
 #include "NetworkSettings.h"
+#include <Hoymiles.h>
 #include <LittleFS.h>
 #include <ResetReason.h>
 
@@ -64,6 +65,8 @@ void WebApiSysstatusClass::onSystemStatus(AsyncWebServerRequest* request)
 
     root[F("uptime")] = esp_timer_get_time() / 1000000;
 
+    root[F("radio_connected")] = Hoymiles.getRadio()->isConnected();
+
     response->setLength();
     request->send(response);
 }
\ No newline at end of file
diff --git a/webapp/src/components/HomeView.vue b/webapp/src/components/HomeView.vue
index a854f149..e35377db 100644
--- a/webapp/src/components/HomeView.vue
+++ b/webapp/src/components/HomeView.vue
@@ -495,7 +495,7 @@ export default defineComponent({
             fetch("/api/limit/status")
                 .then((response) => response.json())
                 .then((data) => {
-                    this.currentLimit = data[serial].limit;
+                    this.currentLimit = data[serial].limit_relative;
                     this.successCommandLimit = data[serial].limit_set_status;
                     this.limitSettingSerial = serial;
                     this.limitSettingLoading = false;
diff --git a/webapp/src/components/SystemInfoView.vue b/webapp/src/components/SystemInfoView.vue
index 0e73c57e..d0284782 100644
--- a/webapp/src/components/SystemInfoView.vue
+++ b/webapp/src/components/SystemInfoView.vue
@@ -17,6 +17,8 @@
             <div class="mt-5"></div>
             <MemoryInfo v-bind="systemDataList" />
             <div class="mt-5"></div>
+            <RadioInfo v-bind="systemDataList" />
+            <div class="mt-5"></div>
         </template>
     </div>
 </template>
@@ -26,12 +28,14 @@ import { defineComponent } from 'vue';
 import HardwareInfo from "@/components/partials/HardwareInfo.vue";
 import FirmwareInfo from "@/components/partials/FirmwareInfo.vue";
 import MemoryInfo from "@/components/partials/MemoryInfo.vue";
+import RadioInfo from "@/components/partials/RadioInfo.vue";
 
 export default defineComponent({
     components: {
         HardwareInfo,
         FirmwareInfo,
         MemoryInfo,
+        RadioInfo,
     },
     data() {
         return {
@@ -60,7 +64,9 @@ export default defineComponent({
                 littlefs_total: 0,
                 littlefs_used: 0,
                 sketch_total: 0,
-                sketch_used: 0
+                sketch_used: 0,
+                // RadioInfo
+                radio_connected: false,
             }
         }
     },
diff --git a/webapp/src/components/partials/DevInfo.vue b/webapp/src/components/partials/DevInfo.vue
index 598c9c2b..bb20e68d 100644
--- a/webapp/src/components/partials/DevInfo.vue
+++ b/webapp/src/components/partials/DevInfo.vue
@@ -6,6 +6,12 @@
     </BootstrapAlert>
     <table v-if="devInfoList.valid_data" class="table table-hover">
         <tbody>
+            <tr>
+                <td>Model</td>
+                <td v-if="devInfoList.hw_model_name != ''">{{ devInfoList.hw_model_name }}</td>
+                <td v-else>Unknown model! Please report the "Hardware Part Number" and model (e.g. HM-350) as an issue
+                    <a href="https://github.com/tbnobody/OpenDTU/issues" target="_blank">here</a>.</td>
+            </tr>
             <tr>
                 <td>Bootloader Version</td>
                 <td>{{ formatVersion(devInfoList.fw_bootloader_version) }}</td>
@@ -40,7 +46,8 @@ declare interface DevInfoData {
     fw_build_version: number,
     fw_build_datetime: Date,
     hw_part_number: number,
-    hw_version: number
+    hw_version: number,
+    hw_model_name: string,
 }
 
 export default defineComponent({
diff --git a/webapp/src/components/partials/EventLog.vue b/webapp/src/components/partials/EventLog.vue
index f8ebe324..0b2c01c0 100644
--- a/webapp/src/components/partials/EventLog.vue
+++ b/webapp/src/components/partials/EventLog.vue
@@ -41,14 +41,20 @@ export default defineComponent({
     computed: {
         timeInHours() {
             return (value: number) => {
-                const hours = Math.floor((value) / 3600);
-                const minutes = Math.floor((value - hours * 3600) / 60);
-                const seconds = (value - hours * 3600 + minutes * 60) % 60;
+                const days = Math.floor(value / (24 * 60 * 60));
+                const secAfterDays = value - days * (24 * 60 * 60);
+                const hours = Math.floor(secAfterDays / (60 * 60));
+                const secAfterHours = secAfterDays - hours * (60 * 60);
+                const minutes = Math.floor(secAfterHours / 60);
+                const seconds = secAfterHours - minutes * 60;
 
                 const dHours = hours > 9 ? hours : "0" + hours;
                 const dMins = minutes > 9 ? minutes : "0" + minutes;
                 const dSecs = seconds > 9 ? seconds : "0" + seconds;
 
+                if (days > 0) {
+                    return days + " " + dHours + ":" + dMins + ":" + dSecs;
+                }
                 return dHours + ":" + dMins + ":" + dSecs;
             };
         },
diff --git a/webapp/src/components/partials/RadioInfo.vue b/webapp/src/components/partials/RadioInfo.vue
new file mode 100644
index 00000000..4d80360b
--- /dev/null
+++ b/webapp/src/components/partials/RadioInfo.vue
@@ -0,0 +1,35 @@
+<template>
+    <div class="card">
+        <div class="card-header text-white bg-primary">
+            Radio Information
+        </div>
+        <div class="card-body">
+            <div class="table-responsive">
+                <table class="table table-hover table-condensed">
+                    <tbody>
+                        <tr>
+                            <th>Chip Status</th>
+                            <td class="badge" :class="{
+                                'bg-danger': !radio_connected,
+                                'bg-success': radio_connected,
+                            }">
+                                <span v-if="radio_connected">connected</span>
+                                <span v-else>not connected</span>
+                            </td>
+                        </tr>
+                    </tbody>
+                </table>
+            </div>
+        </div>
+    </div>
+</template>
+
+<script lang="ts">
+import { defineComponent } from 'vue';
+
+export default defineComponent({
+    props: {
+        radio_connected: { type: Boolean, required: true },
+    },
+});
+</script>