The ARM-O from Aurora Propulsion Technologies is a Spacecraft Thruster with a thrust range of 0.6-4 mN and a specific impulse of 100 sec. This resistojet module has an idle power of 50 mW and a active power range of 3-5 W/mN. It is suitable for 1-3U or 6U CubeSats and includes 1-4 thrusters depending on size and thrust requirements. The thruster supports CAN, I2C or RS-485 interfaces for command. It has a wet mass of 50-2000 g and a dry mass of 50-1500 g. This thruster is ideal for orbit control of CubeSat propulsion system utilizing a water-based propellant and other applications such as orbital changes, collision avoidance and station keeping.