Catwalk sensing device

A portable catwalk sensing device, comprising:

• a proximity detector configured to detect a proximity of a conveyor portion of a catwalk tubular transport machine, a tubular carried by the catwalk tubular transport machine, or both, to a predetermined location relative to the rig floor, wherein the proximity detector is configured to be releasably mounted to a rig structure or the conveyor portion;
• a module comprising a processor, the module being configured to communicate with the proximity detector and receive data representing proximity of the catwalk tubular transport machine, the tubular, or both from the proximity detector, a rig floor, or a combination thereof, wherein the module comprises a housing and is configured to be portable;
• and
• an alarm coupled to or integral with the module, wherein the alarm is configured to communicate with the processor, such that the processor is configured to cause the alarm to provide an indication to a user of the proximity of the catwalk tubular transport machine, the tubular, or both.