Finnex HC-820W Digital Heater Controller

Finnex HC-820W Digital Heater Controller

• 1000 Watt Max Output Load with Dual Relay Protection
• 1/10th Degree Temperature Calibration
• 3 Digit Digital Display & Control
• Over Heating Audio Alert
• Temperature Saving Memory Protection
• ± .5°F High Precision Accuracy
• Temperature Steady Low Variance Technology

The HC-820M & HC-820W controller uses an advanced digital processor that monitors and controls the water temperature in your aquarium. The heating controller receives temperature data from the remote sensor in the aquarium. The remote sensor contains no bi-metallic contacts to arc, corrode or wear out. This allows the controllers to have precise control, keeping the water temperature stable while avoiding wide temperature swings common with low-quality aquarium controllers. The controller displays the current temperature, allowing you to easily make temperature adjustments on the front panel. Temperature can be adjusted by a tenth of a degree.

Audio Alert only on the HC-820M:  The remote sensor also functions as an automatic power cut-off switch. If the water level drops too low and exposes the temperature sensor to the air, power to the heater tube is turned off. This prevents over-heating of the aquarium, saving your prized aquarium life from harm or other hazards.  This feature only works on Saltwater Aquariums and in water parameters of 150 TDS and above.  Outside of the noted, users should opt for the HC-820W instead.