The Digital Tachometer is a game-changer in the industrial and scientific world. As a result of my tests i determined that this handheld device accurately measures speed from 50 to 19999 RPM.Its compact design and easy-to-read LCD display make for an effortless experience. The sturdy body of the tachometer ensures excellent durability, making it a wise investment for any industrial application. The only downside to this device is its relatively high cost. However, the value it provides justifies the price. Overall, I highly recommend this product to anyone in search of a dependable and accurate tachometer..