CubeSense are CMOS-imager based Sun and Earth sensors with a wide FOV, low power usage and high accuracy. CubeSense is available in two different formats, one being a PC104 sized board with two sensor heads featuring full redundancy on memory, and the other being a highly compact single sensor head with integrated electronics. These sensors provide Sun/Earth measurements with <0.2° (3σ) accuracy over the entire FOV. The sun sensors are completely immune to albedo effects, making them highly robust and versatile. All sensors are calibrated in our state-of-the-art dark, clean, optics calibration room, using a sun-simulator and highly accurate rotation stage. CubeSense has flight heritage for a wide variety of missions and orbits.