S.T. International Microchip Controlled Digital Aquarium Heater with Thermal Powder Diffusion， 300-watt</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Real Micro-Chip controlled heater that keeps the water temp to within 1°F of your setting</li><li>Proven energy-saving， up to 50%</li><li>Auto shut-off few minutes after leaving the water - Heater won't Crack</li><li>Fully submersible and truly water-proof</li><li>2-in-1 LED indicator and thermometer</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41%2BWL391I%2BL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/315M%2Bi2raRL.jpg' noproxy></br>