Precision light gate with infrared light source for controlling external timing
devices, variable control with LED indicator for adjusting intensity to
surrounding lighting conditions, with hole and capstan-head screw for
fixing on rods of up to 10 mm in diameter, measuring accuracy: 0.1 mm.
Signal output and power supply by way of 3-pin DIN jacks, for the direct
connection with the universal counter P3120-2Z (shown on the next page)
or digital counter, universal DR260-1D.
Internal gate width: 74 mm, external dimensions: 175x130 mm.