diff --git a/numkeydia.cpp b/numkeydia.cpp
index 16035d6..057c407 100644
--- a/numkeydia.cpp
+++ b/numkeydia.cpp
@@ -96,6 +96,12 @@ void NumKeyDia::setPLineEdit(QLineEdit *newPLineEdit)
 
     m_isDouble = m_pLineEdit->property("IsDouble").toBool();
 
+    if(m_isDouble)
+    {
+        m_format = m_pLineEdit->property("Format").toInt();
+        m_prec = m_pLineEdit->property("Prec").toInt();
+    }
+
     if(m_minValue == m_maxValue)
     {
         ui->label_min->setText(tr("no limit"));
@@ -105,8 +111,8 @@ void NumKeyDia::setPLineEdit(QLineEdit *newPLineEdit)
     {
         if(m_isDouble)
         {
-            ui->label_max->setText(QString::number(m_maxValue, 10, 3));
-            ui->label_min->setText(QString::number(m_minValue, 10, 3));
+            ui->label_max->setText(QString::number(m_maxValue, m_format, m_prec));
+            ui->label_min->setText(QString::number(m_minValue, m_format, m_prec));
         }
         else
         {
@@ -157,7 +163,7 @@ void NumKeyDia::on_btn_ok_clicked()
         }
 
         if(m_isDouble)
-            m_pLineEdit->setText(QString::number(_d, 10, 3));
+            m_pLineEdit->setText(QString::number(_d, m_format, m_prec));
         else
             m_pLineEdit->setText(QString::number(_d, 10, 0));
     }
diff --git a/numkeydia.h b/numkeydia.h
index 6b68700..b58be3c 100644
--- a/numkeydia.h
+++ b/numkeydia.h
@@ -56,6 +56,8 @@ private:
     double m_maxValue = 0.000;
     bool m_isNum = false;
     bool m_isDouble = false;
+    char m_format = 'f';
+    int m_prec = 3;
 };
 
 #endif // NUMKEYDIA_H