Coherent Inc. offers the industry's widest selection of test and measurement capabilities, including standard instruments, detectors and custom systems. We offer products for power and energy measurement, wavelength and spectral analysis, and beam diagnostics.Whether you're measuring a laser's performance, obtaining laser system feedback or maintaining control of an application, test and measurement products from Coherent can help you get results that are easier to obtain and more accurate.For example, the new dBCheck is a handheld power meter that provides measurements of fiber optic cable. The dBCheck comes with a choice of three connectors: ST, FC and SC. Calibrated using NIST-traceable standards, it has a measurement range of 260 to 3 dBm. It provides ±5% accuracy from 850 to 1700 nm, and its three-digit LCD provides readouts for microwatts, milliwatts and decibels per meter. The device features a long-life lithium battery, too.Overall, Coherent offers the largest selection of standard test and measurement products in the industry. We also offer high-volume production capabilities, custom-built systems, and superior service and support.