It should be noted that the Dinotte models that use AA batteries do have trouble with rain. They will operate in the rain but the battery pack gets soaked. That doesn't bother them immediately but after a few rains the cheap battery holder will corrode and become unreliable. Luckily replacements are about $2 at Radio Shack. Still, when I had one, I would buy 2 or 3 of the packs every time I ran out, because I only made it through maybe 3 rainy days before having to throw out a holder.