diff --git a/src/devicebase.js b/src/devicebase.js
new file mode 100644
index 0000000..38371fa
--- /dev/null
+++ b/src/devicebase.js
@@ -0,0 +1,120 @@
+
+const TuyaDevice = require('tuyapi');
+const log4js = require('log4js');
+
+class DeviceBase {
+    constructor(deviceconfig, mqtt) {
+        // setup logger
+        const loggername = deviceconfig.id ? deviceconfig.id : "undef device"
+        this.logger = log4js.getLogger(loggername);
+        this.logger.level = deviceconfig.loglevel;
+        // check device attributes
+        if (!deviceconfig.id) {
+            this.logger.error("missing attribute 'id' in device config")
+            return
+        }
+        if (!deviceconfig.key) {
+            this.logger.error("missing attribute 'key' in device config")
+            return
+        }
+        if (!deviceconfig.topic) {
+            this.logger.error("missing attribute 'topic' in device config")
+            return
+        }
+        // define device vars   
+        this.mqtt = mqtt
+        this.topicname = deviceconfig.topic
+        this.deviceid = deviceconfig.id
+        this.devicekey = deviceconfig.key
+
+        this.topic_get = `${deviceconfig.topic}/get`
+        this.topic_set = `${deviceconfig.topic}/set`
+        this.topic_state = `${deviceconfig.topic}/state`
+
+        this.logger.debug(`use topic (all)      : ${this.topicname}`)
+        this.logger.debug(`use topic (get)      : ${this.topic_get}`)
+        this.logger.debug(`use topic (set)      : ${this.topic_set}`)
+        this.logger.debug(`use topic (state)    : ${this.topic_state}`)
+
+        this.intervall_refresh = deviceconfig.refresh ? deviceconfig.refresh * 1000 : 10000
+        this.reconnect_timout = deviceconfig.reconnect ? deviceconfig.reconnect * 1000  : 5000
+
+        this.logger.debug(`refresh timer   (ms) : ${this.intervall_refresh}`)
+        this.logger.debug(`reconnect timer (ms) : ${this.reconnect_timout}`)
+
+        this.lastdata = {}
+        // call init function
+        this.init()
+
+        // connect to device
+        try {
+            this.device = new TuyaDevice({
+                id: this.deviceid,
+                key: this.devicekey,
+                issueRefreshOnConnect: true,
+            })
+            this.reconnect()
+
+        } catch (error) {
+            this.logger.error(`Cannot connect to ${this.deviceid}`)
+            this.logger.error(error.message)
+        }
+
+        this.device.on('connected', () => {
+            this.connected = true
+            this.logger.info(`Connected to tuya id: ${this.deviceid}, ip: ${this.device.device.ip}, prefix: ${this.topicname}`)
+            this.startWatcher()
+            // subscribe to topic
+            this.mqtt.subscribe(this.topic_set, (err) => {
+                if (err) {
+                    this.logger.error(`Cannot subscribe to ${this.topic_set}`)
+                } else {
+                    this.logger.info(`Subscribed to ${this.topic_set}`)
+                }
+            });
+            this.logger.debug(`publish ${this.totopic_statepic_get}: "online"`)
+            this.mqtt.publish(this.topic_state, "online")
+        });
+
+        this.device.on('disconnected', () => {
+            clearInterval(this.timer)
+            this.logger.info(`Disconnected`)
+            this.logger.debug(`publish ${this.topic_state}: "offline"`)
+            this.mqtt.publish(this.topic_state, "offline")
+            setTimeout(() => this.reconnect(), this.reconnect_timout)
+            this.device.device.ip = undefined   // will error without? WHY???
+        });
+
+        this.device.on('error', error => {
+            clearInterval(this.timer)
+            this.logger.debug(`publish ${this.topic_state}: "offline"`)
+            this.mqtt.publish(this.topic_state, "offline")
+            setTimeout(() => this.reconnect(), this.reconnect_timout)
+        });
+    }
+
+    reconnect() {
+        this.device.find().then(el => {
+            if (el) {
+                this.device.connect()
+            } else {
+                this.logger.debug("Reconnect failed: device offline")
+                setTimeout(() => this.reconnect(), this.reconnect_timout)
+            }
+        }).catch(el => {
+            this.logger.debug("Reconnect failed: device timed out")
+            setTimeout(() => this.reconnect(), this.reconnect_timout)
+        })
+    }
+
+    disconnect() {
+        this.connected = false
+        clearInterval(this.timer)
+        this.device.disconnect()
+        this.logger.info(`Disconnected for id: ${this.deviceid}`)
+        this.reconnect = () => {}   // prevent reconnect on exit
+    }
+
+}
+
+module.exports = DeviceBase
\ No newline at end of file
diff --git a/src/index.js b/src/index.js
index a81e5bb..cc889d1 100644
--- a/src/index.js
+++ b/src/index.js
@@ -49,7 +49,7 @@ async function main() {
         // Subscribe to a topic
     })
     client.on("reconnect", () => {
-        loggerInit.info("reconnecting!")
+        loggerInit.info(`Try reconnect to ${mqttserver}`)
     })
     client.stream.on('error', (err) => {
         loggerInit.error('error')
@@ -61,6 +61,7 @@ async function main() {
 
     if (config.devices){
         config.devices.forEach((device) => {
+            device.loglevel = config.loglevel
             const deviceClassFile = `./modules/${device.type}`
             loggerInit.info(`Setup device ${device.id}, type: ${device.type}, class:'${deviceClassFile}.js'`)
             try {
diff --git a/src/modules/luminea_nx_4458.js b/src/modules/luminea_nx_4458.js
index 00dd0ca..6ec3536 100644
--- a/src/modules/luminea_nx_4458.js
+++ b/src/modules/luminea_nx_4458.js
@@ -1,31 +1,14 @@
-const TuyaDevice = require('tuyapi');
-const log4js = require('log4js');
+/*
+*   Device class definition for Luminea NX-445
+*   https://www.luminea.info/Outdoor-WLAN-Steckdose-kompatibel-zu-Alexa-NX-4458-919.shtml
+*
+*   by Dennis Gunia (08/2024)
+*/
 
-class Lineplug {
-    constructor(deviceconfig, mqtt) {
-        const loggername = deviceconfig.id ? deviceconfig.id : "undef device"
-        this.logger = log4js.getLogger(loggername);
-
-        if (!deviceconfig.id) {
-            this.logger.error("missing attribute 'id' in device config")
-            return
-        }
-        if (!deviceconfig.key) {
-            this.logger.error("missing attribute 'key' in device config")
-            return
-        }
-        if (!deviceconfig.topic) {
-            this.logger.error("missing attribute 'topic' in device config")
-            return
-        }
-
-        this.mqtt = mqtt
-        this.topicname = deviceconfig.topic
-        this.deviceid = deviceconfig.id
-        this.topic_get = `${deviceconfig.topic}/get`
-        this.topic_set = `${deviceconfig.topic}/set`
-        this.intervall = deviceconfig.refresh ? deviceconfig.refresh * 1000 : 10000
+const DeviceBase = require('../devicebase')
+class Lineplug extends DeviceBase {
 
+    init() {
         this.lastdata = {
             voltage: 0,
             current: 0,
@@ -36,49 +19,27 @@ class Lineplug {
             countdown_1: 0,
             random_time: 0,
         }
-        try {
-            this.device = new TuyaDevice({
-                id: deviceconfig.id,
-                key: deviceconfig.key,
-                issueRefreshOnConnect: true,
-                ip: deviceconfig.ip,
-            })
-            this.device.find().then(el => {
-                this.device.connect().then(el => {
-                    this.logger.info(`Connected to tuya id: ${this.deviceid} @ ${this.topicname}`)
-                    this.startWatcher()
-                    this.mqtt.subscribe(this.topic_set, (err) => {
-                        if (err) {
-                            this.logger.error(`Cannot subscribe to ${this.topic_set}`)
-                        } else {
-                            this.logger.info(`Subscribed to ${this.topic_set}`)
-                        }
-                    });
-                }).catch(error => {
-                    this.logger.error(`Cannot connect to ${this.deviceid}`)
-                    this.logger.error(error.message)
-                });
-            })
-        } catch (error) {
-            this.logger.error(`Cannot connect to ${this.deviceid}`)
-            this.logger.error(error.message)
-        }
     }
 
     startWatcher() {
         // monitoring loop
-        this.timer = setInterval(() => this.device.refresh(), 10000)
+        this.timer = setInterval(() => {
+            this.device.refresh()
+        }, this.intervall_refresh)
         this.logger.info(`Started watcher for id: ${this.deviceid}`)
         this.device.on('data', data => {
+            this.logger.debug(`rx data: ${JSON.stringify(data)}`)
             this.processData(data)
         });
         this.device.on('dp-refresh', data => {
+            this.logger.debug(`rx dp-refresh: ${JSON.stringify(data)}`)
             this.processData(data)
         });
         // monitor queue
         this.mqtt.on('message', (topic, message) => {
             // message is Buffer
             let payload = message.toString()
+            this.logger.debug(`input ${topic}: ${payload}`)
 
             try {
                 const jsonpayload = JSON.parse(payload)
@@ -121,7 +82,7 @@ class Lineplug {
             changed = true
         }
         if (updatedValues.includes('9')) {
-            this.lastdata.countdown_1 = dps['9'] 
+            this.lastdata.countdown_1 = dps['9']
             changed = true
         }
         if (updatedValues.includes('41')) {
@@ -135,20 +96,19 @@ class Lineplug {
         if (updatedValues.includes('1')) {
             this.lastdata.status = dps['1']
             changed = true
-            this.mqtt.publish(this.topic_get, JSON.stringify({
+            const msg = {
                 value: this.lastdata.status
-            }))
+            }
+            this.mqtt.publish(this.topic_get, JSON.stringify(msg))
+            this.logger.debug(`publish ${this.topic_get}: ${JSON.stringify(msg)}`)
         }
         if (changed) {
             this.mqtt.publish(this.topicname, JSON.stringify(this.lastdata))
+            this.logger.debug(`publish ${this.topicname}: ${JSON.stringify(this.lastdata)}`)
+
         }
     }
 
-    disconnect() {
-        clearInterval(this.timer)
-        this.device.disconnect()
-        this.logger.info(`Disconnected for id: ${this.deviceid}`)
-    }
 }
 
 module.exports = Lineplug
\ No newline at end of file