TRANSMITTER (12”TO 28”) – TRANSMITTERS THAT WILL BE COUPLED TO THE PIG, REUSABLE, WITH A BATTERY WITH A MINIMUM CAPACITY OF 300 HOURS, CAPABLE OF WITHSTANDING PRESSURES OF UP TO 110 KGF / CM² IN GAS PIPING. IT SHOULD BE STANDARDIZED FOR MANDREL PIGS FOR PIPE DIAMETERS FROM 12 ”TO 28”. IT MUST BE ABLE TO TRANSMIT SIGNALS AT DEPTHS OF UP TO 6M.