Abstract: Apparatus which measures loads imposed on load carrying members, and particularly such members in presses, to indicate the peak load reached during a press cycle, has circuits for amplifying the electrical signal from a sensing device such as a strain gage bridge, a peak detector which provides an output representing the peak load, and a digital indicator. Zero setting is achieved by integrating and holding an offset voltage derived by an integrating circuit in negative feedback relationship with the circuit which amplifies the signals from the sensing device. Calibration of the apparatus for press factor is obtained by adjusting the gain of a variable gain stage in the amplifier. The peak detector is reset each press cycle when the load sensed bears a predetermined ratio to rated or full capacity load.