Measurement Specialties introduces the TruBlue 255 Level data logger which offers more memory, longer battery lifespan and a new compact design. Featuring advanced, power-conserving microprocessor technology, the device is part of the TruBlue line specifically designed for long-term measurement of water levels in environmental and watershed management applications including groundwater, surface water, wave height, tide and harbor gauging.
With a standard internal memory of 8 MB, the data logger is capable of storing up to 550,000 level and temperature measurements. Optional 56 MB memory increases storage capacity to 3.7 million measurements. Its internal 3.6 V lithium battery, with on-board surge protection, has a lifespan of ten years based on one reading every 5 minutes, making the transducer good for remote environmental data collection and process monitoring. An auxiliary battery option doubles the battery lifespan and makes it ideal for rapid sampling applications such as wave height studies. Sampling modes include linear, linear averaging, and event, with programmable sampling rates of up to 8 Hz. Additionally, this new unit provides an accuracy of +0. 05% FS total error band which includes changes in temperature within the compensated temperature range of 0oC to 50oC.