Hach Co. unveiled its DR 3900 spectrophotometer featuring state-of-the-art radio frequency identification (RFID) technology. Hach, which describes the device as being “similar to a GPS telling you when to turn,” also says that the DR 3900 requires less training and increases confidence in the test results. This helps water and wastewater facilities prevent measurement errors. The DR 3900 further simplifies water analysis by walking users through testing procedures to ensure consistently accurate results regardless of the user’s knowledge. The device allows for hands-free calibration updates and enables tracking of samples. It connects easily with any computer or water management system through one LAN and three USB ports. (http://www.hach.com/spectrophotometer)