Many great easy to use features and flexible for different applications. I needed tech support for pin configuration and the company responded very quick. Instruction manual included.
Received the DRO with the X and Z axis not working. Tried to contact the seller but no luck. The problem was the connects in the DRO was completely popped out from the plastic housing. After re-inserting the contacts the DRO now is working properly. The DRO is well designed but the QA is not good. Nevertheless, I like it for its accuracy and low cost.
liked this unit... inexpensive, yet solid. Would recommend. Lots of applications on my mill. Operator manual thorough and exhaustive... Linear encoder works well... need to be pretty creative to mount solidly and shield from swarf and crud...
Cletus Berkeley 
