The 42CRC-4000 is a Color Registration Control that is manufactured and branded by Allen-Bradley and Rockwell Automation. The 42CRC-4000 has a voltage supply between 10 and 30 Volts DC and a current consumption of 70 milliamperes (maximum). This 42CRC-4000 model in particular has an open collector output (NPN, current sink) and an output rated load current (on-state) of 100 milliamperes. The output rated load voltage (off-state) for the 42CRC-4000 is 30 Volts DC, while output short circuit protection is continuous. The response time at maximum contrast (black and white) is 250 microseconds. Minimum web velocity is 2 inches per second (51 millimeters per second) and maximum output dwell is 250 milliseconds minimum. Minimum output dwell (overridden by signal duration) is 250 microseconds. The 42CRC-4000 comes standard with transmitter LEDs, selectable red or green, with visible red being 630 nm and visible green being 570 nm.

The 42CRC-4000 has a scanning distance of 0.5” (13 millimeters) and a depth of field of +/- .08” (2 millimeters). It has a minimum size of mark at scanning distance of 0.08” x .10” (2 millimeters x 2.5 millimeters) and false pulse suppression. The 42CRC-4000 also comes standard with reverse polarity protection, external gating mode, and latching output mode with external reset. Additional specifications for the 42CRC-4000 include dimensions of 3.80 x 2.95 x 1.31 inches, or 97 x 75 x 33 millimeters. It has an approximate weight of 12 ounces (350 grams) and a storage temperature that ranges between -25 and 75 degrees Celsius, or -13 to 167 degrees Fahrenheit. The 42CRC-4000 has an operating ambient temperature range between 0 and 70 degrees Celsius, or 32 to 158 degrees Fahrenheit. The maximum relative humidity is 95% and the 42CRC-4000 has agency certifications for UL Listed and CSA certified.