LaMotte's photometers are a unique, multi-test, waterproof, Bluetooth hand-held way of easily measuring and reading multiple test factors directly on a digital display. Featuring an innovative dual-optic design, the ColorQ 2x provides more accuracy and more test factors. The ColorQ 2x eliminates the need to visually determine slight color variations or the use of look-up tables, which takes the guesswork out of pool-side water analysis.