The HPM4000 series by Webtec is a Multi-function data logger which is ideal for pre-dispatch inspection, preventative maintenance and simple diagnostic fault finding. For this specific model, it comes with 2 available models. One uses a Sensor Recognition (SR) and the other uses an Intelligent Digital (ID). It uses a complete range of sensors that can detect pressure, temperature, flow and tachometer. For its memory, it comes with a 4 gb and it can be connected using Nano-USB and USB cable.