The OptioLaser S300 from Hawk Measurement uses infrared 905 nanometer technology to allow for accurate measurement of highly reflective, clear liquids. Due to its narrow beam divergence, it can be used to measure through grates and narrow passages and also next to flat walls. The laser is user-configurable, allowing for optimal performance for a specific application. It can be operated without calibration and is unaffected by background noise and vapor pressure. 978-304-3000; www.hawkmeasure.com