Ag measurematics pvt ltd offers strain gauge signal conditioners. These are available in various models like ac 401, ai 401a, ai 401b. These are equipped with stable excitation source and low-noise high gain amplifiers. Model ac 401 comes with open pcb format. Model ai 401a is encapsulated in a panel mounting type of box. Zero and span controls are fitted on its front panel and input/ output terminals are located on back panel. It needs a +/-15 v dual dc power supply. Model ai 401b is also encapsulated in a panel mounting type of box. It is provided with mains operated power supply. Zero and span controls fitted on its front panel and the input/ output terminals on its backside panel.