They work very well in my turtle enclosure. The only problem is the little hooks they come with, I couldn't use them and there was no other way to attach them so I had to buy some velcro strips and attach them to the side. An inconvenience, but their accuracy and reliability make up for it. Update: The screen came out of my master's spray (within a few weeks. Being a reptilian product I assumed it would be semi waterproof. Not a good guess! Keep dry and away from smoke machines.
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