Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good but flimsy mounting

The detector is made fairly robustly, but the only thing disappointing was that to mount on a box, there is a think plastic bracket. Rather than having defined screw holes, there are a series of conjoined slots. These slots must be tightened significantly in order to securely mount the base. Unfortunately, the bracket is poorly designed where as the torque applied when tightening one box screw will dislodge the other screw. This is a major oversight by the manufacturer, which creates about 5 minutes of swearing your first time installing this product.