The PosiTector 200 is a coating thickness gauge from DeFelsko that measures the coating on materials like wood or plastic using ultrasound technology. There are a few different versions of the device which are designed to measure different thicknesses. If you have any questions about the PosiTector 200 and which one you may need, give us a call at 1-847-3980 or email us at info@bergeng.com. We will be sure to answer all of your questions.