Helm weigh modules provide 2 independent channels of weigh scale measurement. Each weigh module can accept two 350 ohm strain gages or up to four 700 ohm strain gages. The sensors are wired directly into the module, simplifying the installation. With a self-contained power source, no external amplification is required. Software is provided for gain and balance control. Calibration settings are programmable. Helm weigh modules are compatible with the 1734, 1746, 1756 and 1769 series of programmable controllers.