Rapid chloride penetration test rcpt apparatus is laboratory device to find electrical indication of concrete its capability to resist chloride ion penetration and to find chloride diffusion coefficient of concrete and durability durability based, Based quality design, For predicting service life control of concrete structures. This is fully automatic device and can log data after each 30 min. And shows the logged value of all 3 channels simultaneously on the second display. And the machine will automatically shutdown after 6 hrs, This feature makes it very unique, User can leave the place while testing is going on and every piece of relevant data will be logged in memory/pendrive. This machine has a can connect, Bluetooth feature your android device to access the data remotely and readings can be shared. Complying with various local and worldwide standards like astm1202, Aashto t277