Miyachi Unitek (www.miyachiunitek.com) says its MM370 machine-mounted weld monitor measures current, voltage, force and displacement, and can set limits and configure comprehensive machine input/output. The hand-held MM380 weld monitor uses a weld-through sensor that measures current, voltage and force simultaneously between the electrodes. Waveforms and data can be printed out by means of a built-in printer on the MM370 or optional printer on the MM380, or by means of a COM port for screen capture and data collection. Both monitors measure single phase, AC, DC and AC inverter weld controls.