diff --git a/.gitignore b/.gitignore
index 4721a2f..35951cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -64,5 +64,6 @@ typings/
 .vscode
 
 dev*
+.idea
 
 package-lock.json
diff --git a/connection_pool.js b/connection_pool.js
index 1a01d86..a3bea7d 100644
--- a/connection_pool.js
+++ b/connection_pool.js
@@ -22,8 +22,6 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE. 
 */
 
-var util = require("util");
-
 var pool = {};
 
 module.exports = {
@@ -46,7 +44,7 @@ module.exports = {
           options.autoConnect == "undefined" ? true : options.autoConnect;
         options.preventAutoReconnect = false;
         options.logLevel = options.logLevel || "WARN";
-        util.log(`[mcprotocol] adding new connection to pool ~ ${id}`);
+        node.debug(`[mcprotocol] adding new connection to pool ~ ${id}`);
 
         var mcp = new mcprotocol();
 
@@ -97,10 +95,10 @@ module.exports = {
           disconnect: function() {
             this._instances -= 1;
             if (this._instances <= 0) {
-              util.log(`[mcprotocol] closing connection ~ ${id}`);
+              node.debug(`[mcprotocol] closing connection ~ ${id}`);
               mcp.dropConnection();
               mcp = null;
-              util.log(`[mcprotocol] deleting connection from pool ~ ${id}`);
+              node.debug(`[mcprotocol] deleting connection from pool ~ ${id}`);
               delete pool[id];
             }
           },
@@ -119,12 +117,12 @@ module.exports = {
 
         mcp.on("error", function(e) {
           if (mcp) {
-            util.log(`[mcprotocol] error ~ ${id}: ${e}`);
+            node.error(`[mcprotocol] error ~ ${id}: ${e}`);
             connecting = false;
             if (options.autoConnect) {
               setTimeout(function() {
                 if (options.autoConnect && !options.preventAutoReconnect) {
-                  util.log(
+                  node.error(
                     `[mcprotocol] autoConnect call from  error handler ~ ${id}`
                   );
                   obj.connect();
@@ -135,17 +133,17 @@ module.exports = {
         });
         mcp.on("open", function() {
           if (mcp) {
-            util.log(`[mcprotocol] connected ~ ${id}`);
+            node.debug(`[mcprotocol] connected ~ ${id}`);
             connecting = false;
           }
         });
         mcp.on("close", function(err) {
-          util.log(`[mcprotocol] connection closed ~ ${id}`);
+          node.debug(`[mcprotocol] connection closed ~ ${id}`);
           connecting = false;
           if (options.autoConnect) {
             setTimeout(function() {
               if (options.autoConnect && !options.preventAutoReconnect) {
-                util.log(
+                node.debug(
                   `[mcprotocol] autoConnect call from close handler ~ ${id}`
                 );
                 obj.connect();
diff --git a/nodes/write.js b/nodes/write.js
index bf5f718..03d74ad 100644
--- a/nodes/write.js
+++ b/nodes/write.js
@@ -24,7 +24,7 @@ SOFTWARE.
 
 module.exports = function(RED) {
   var connection_pool = require("../connection_pool.js");
-  var util = require("util");
+
   function isNumeric(n) {
     return !isNaN(parseFloat(n)) && isFinite(n);
   }
diff --git a/package.json b/package.json
index 461bbd6..2b620eb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "node-red-contrib-mcprotocol",
-    "version": "1.2.0",
+    "version": "1.3.0",
     "description": "Mode-red nodes to Read from & Write to MITSUBISHI PLC over Ethernet using MC Protocol",
     "repository": {
         "type": "git",