The WAW-N Clip is a versatile nylon fastener. This clip may be used for ceiling or wall mount applications, as well as all corners. The fastener is a clip which wraps around the detector and is available in either nylon (WAW-N) or polypropylene (WAW-P) material depending upon the installation environment. As a general rule, nylon WAW clips are preferred for applications where the ambient temperature is expected to be low, such as in freezer warehouses. The installation temperature range for the WAW Series fasteners is -40°F (40°C) to 190°F (88°C).