Depth measuring device
A device with a metal frame wrapped around a measuring tape, there is a digital screen, and the most important outputs measure the salinity of water and electrical conductivity as well as the number of acidity of water and temperature and measure the depth of water.
EC- pH meter device
It is a portable handheld device and the most important outputs are measuring the salinity of water as well as the acidity of the water on the digital screen of the device.
It is a portable handheld device with battery and charger and the most important outputs are determining the latitude and longitude of the studied areas (taking the coordinates of the regions).