Ag measurematics pvt ltd offers weather monitoring device hymdas. This eight channel data logger operates on battery. This device is capable of measuring directly from any eight of the following type of sensors air temperature at up to four points, water evaporation at one point, wind speed at one point, soil moisture at one point, solar radiation at one point, relative humidity at one point, wind - direction at one point, rainfall at one point. The time keeping system keeps track of real an elapsed time in "sleep" mode, at prespecified and programmed intervals and measures automatically the inputs connected to its channels and stores them in its battery backed up memory. This device is encapsulated in a cast aluminum weather proof box.
