When the computer manufacturer's released Windows 7 and ultimately Windows 10, there was a change to the USB communications hardware. Any of our Wideband sensors that do not end in B or D will need to have a hardware upgrade added to the sensor. This requires the sensor to be sent to our service center. An RMA request will need to be submitted and this can be completed by going to the following link:
Once submitted the service center will contact you within 24 hours with shipping instructions and a cost estimate.