Couple questions about temperature guns:

1. Does anybody have a recommendation on an actual product/model? I don't think the Home Depots near me actually stock them so I'll likely have to buy online.

2. I realize this isn't directly related to BP husbandry but I keep a lot of aquatic pets so, does anybody know if they also work for telling the temperature of water? I figure this purchase could save me a lot of hassle.

Thanks!