Check the listing for details. Fishpond Riverkeeper Digital Thermometer - FREE SHIPPING. Condition: New. Listed at 29.95 USD. Fishpond Riverkeeper Digital Thermometer offered for sale by Mayfly Outfitters, an authorized Rio dealer, new on hang tag. Retail price is $29.95 Mayfly Outfitters Special: *FREE SHIPPING! USPS Ground Advantage When the difference between a lights-out day on the water and a hike in the woods comes down to water temperature, the accuracy of your thermometer is crucial. Compact and easy to handle, the Riverkeeper Thermometer is the only IPX7 submersible-rated digital thermometer designed by and for fly anglers. With a rugged exterior, a large UV-filtered screen, a replaceable battery, and a durable aluminum probe, this thermometer is built to withstand years of rigorous use outdoors. The Riverkeeper is the perfect tool for taking precise temperature readings, helping you determine whether it's safe to fish and when your quarry might be most active. At Mayfly Outfitters, we take great pride in our high-quality products, technical expertise, and excellent customer service. Visit the Mayfly Outfitters eBay store to see our complete lineup of fly fishing products. If you don't find what you are searching for, please contact us.