Very interesting little devices. Dimensions of display are 10.06mm by 22.7mm wide. The driver PCB is mounted on the back of the display. 3 wires are used, +ve, Ov and input. The PCB is 30mm wide with "ears" for panel mounting. Holes are 2.5mm dia, 26mm spacing. Distance from PCB front to display front 6.35mm (1/4"). There is a trimmer on the PCB, possibly for fine adjustment (calibration).