Works with your pond de-icer to save electricity. Increases efficiency and energy savings by turning power on to the de-icer based on air temperature rather than water temperature. Thermo Cube automatically turns your de-icer on when the air temperature reaches 35 degrees and off at 45 degrees. Thermostatically Controlled UL Listed One Year Warranty No Installation Required, simply plugs into your existing outlet. thermocubeThermoCube: TC-3 On at 35F Off at 45F For Pond Heaters Most Orders Shipped Out Same Day! Premier Ponds LLC pondinfo@premierponds.com U.S.A. Copyright © 1999 - 2007 Premier Ponds LLC, North Salem, New York. All rights reserved. Thermo-Pond Heater 3.0, Aquascape Designs Pond Kits, ScareCrow Sprinkler, Nursery Pro Micro Pond Kits, AquaClearer, Microbe-Lift, Great Blue Heron Decoy, Pond Liners, Thermo Pond Heater & Deicer, Premium Koi Food, Select Koi, Butterfly Koi, Pond Aeration Pumps, Flexible PVC Piping, BioFalls, Skimmer, Aquascape Pumps, Cat Stop!, Animal Control Products, Pond Netting.