Vital equipment for scouting out prime fishing locations. Plan ahead for your next fishing trip with your buddies and show them how it's done! 100% Non-Electronic, NO expensive batteries to replace! NO messy chargers or cables to keep up with! Liquid Crystal Technology gives guaranteed accurate temperature reading in green within 5-7 minutes. Crystal clear resin casing holds temp long enough for you to reel it in. Works everywhere! Scout for fish from the shore, off a dock, from a boat or even out of a kayak! Can be used at any depth as long as you have the line for it. Durable hard resin material guaranteed not to break! Just toss it in your tackle box, and off you go!