It's our belief that the Jager TruTemp Aquarium Heater is one of the best heaters on the market and it's the only heater that we trust in our own systems. It's easily affordable when compared to others on the market and is incredibly reliable. In systems that we've setup, and over many hundreds of thousands of hours of operation among those systems, not a single one has failed.
 
Precise temperature control: 65-93° F
Made from shatter-proof laboratory glass
TruTemp technology - ability to calibrate the heater for precise temperature
Easy calibration to ±2ºF
Run dry protection with Thermo safety control - heater shuts off when not submerged
UL Certified Heater
ON/OFF control lamp to indicate a heating function
5 1/2 Ft. cable
Includes clamp with 2 suction cups
Made in Germany