T-Series submersible heaters combine electronic accuracy, reliable monitoring, and multiple safety features to easily maintain desired aquarium water temperatures. The 360° indicator light ring displays heat mode clearly from any angle, while a convenient large grip dial allows users to adjust the water temperature with ease. In absence of water, the T-Heater automatically cuts power to prevent overheating, while a heater guard provides additional peace-of-mind protection.

Key Features :

• 100-Watt heater designed for aquariums up to 30 US Gal / 100 L
• Advanced electronic construction provides superior accuracy, stability and long-term performance 
• 24/7 monitoring regulates temperature and avoids large, unsafe fluctuations
• 360° indicator light ring displays heat mode clearly from any angle (illuminates RED when heating function is engaged and BLUE when desired temperature is achieved)
• In absence of water, the T-Heater automatically cuts power to prevent overheating
• Heater Guard provides additional protection against breakage 
• Large grip dial easily adjusts water temperature from 72-90˚F / 22-32˚C
• Fully submersible design allows for placement anywhere in aquarium either vertically or horizontally
• For use in freshwater aquariums