RL-4 Security Droid

The RL-4 Security droid is a Security droid model found on several worlds.

Appearance
The RL-4 unit resembles a semi-humanoid droid with a mono-wheel attached to the bottom of its torso. Its face is bulky, and it comes with piggishly small optic sensors.

History
The RL-4 Security droid was conceived by Industrial Automaton as a mobile security and law enforcement droid that could roll over any terrain. The RL-4 unit's mono-wheel transport system was supported by two very long arms that stabilized the droid, and it came with two retractable blasters mounted under its shoulders. RL-4 units were mainly used by police officers to help them capture escaping criminals. Eventually, more sophisticated pursuit droids came out, and Industrial Automaton retired the line several standard years later. Later on, the droids were relegated to guarding mining operations by the Empire. One RL-4 unit, named 3E-RL-4, was in service to The Great Heep.

Trivia

 * This droid was based on a droid called the "Roller Gulper" from Star Wars Droids.