Leak measurement unit - used CPU with 24 bit delta/sigma ADC - precise sensor, powered by low noise reference, connected directly to the ADC - communication with master system via digital I/O and/or RS232/RS485 or Ethernet - 2 additional analog inputs 0(4)-20mA/0-2V - 6 digital outputs (24V/1A) - 6 digital inputs - 2 analog outputs 0-10V with SW capability of zoom of measured signal