Brand new STP-910 stabilized hene laser. It originally was a fiber coupled model, but the fiber had been damaged, but the tube was still brand new, so I converted it to a free space version. It runs properly, and locks as it should, with a healthy output well over its minimum and behaves like new. I have it set to around 0.75mW at present, but this can be adjusted along with the frequency using a potentiometer on the side of the locking device.