The repair offered by KNAUER usually takes not more than 7 working days after confirmation of the estimate of costs. An estimate of the total time, your device will be returned at your hands after you send it to KNAUER strongly depends on the device type, the seriousness of the failure as well as related delivery factors. Once the device is arrived at KNAUER you are always informed with a delivery confirmation from our repair team. If you want to get updated on the process of your repair, you can always contact our KNAUER customer support (support@knauer.net).