Review on Extech 461893 NIST Photo Tachometer NIST by Charles Mathews

This compact tachometer is a great asset for anyone in the industrial AND scientific field. When I tried this product, I was impressed with how easy it was to use and the accuracy of its readings.The NIST certification makes it perfect for use in critical applications and the quick response time ensures that it's efficient. The only downside is that the battery life could be better. Overall this is a quality product that provides reliable speed measurements..