After enough exposure to sunlight, foam windscreens can begin to crumble and should be replaced.
About this task
With enough ultraviolet exposure, foam windscreens can turn brown or beige. After further ultraviolet exposure, they begin to physically deteriorate. Generally speaking, windscreens can continue to be used if they are discolored. It is only necessary to replace them when the foam begins to crumble.
Wildlife Acoustics windscreens are held in place using a metal retaining ring. If you have difficulty removing or installing the windscreen by hand, you can use snap ring pliers to pry open the retaining ring.
Figure 1. Retaining Ring and Snap Ring Pliers

To replace a windscreen, you will need the following:
- Wildlife Acoustics replacement windscreen (product code: WT500_2)
- Snap ring pliers with a tip diameter of 0.047 in.
- A marker or similar cylindrical object, slightly less than ½ inch in diameter