Finnex - Leading Titanium Aquarium Heating Brand Since 2001 - Established industry leader in premium aquarium heater controllers and heating solutions; trusted by aquarium professionals, reef enthusiasts, and serious hobbyists for over two decades of proven reliability
Japanese Precision Sensor Technology with ±.5°F Accuracy - Advanced Japanese-engineered remote sensor eliminates bi-metallic contacts that corrode and wear; delivers superior precision compared to budget aquarium temperature controllers offering ±1-2°F tolerance
Taiwan-Manufactured Professional-Grade Quality - Built to Taiwan's exacting engineering standards; this digital aquarium heater controller combines precision craftsmanship with rigorous quality assurance protocols ensuring years of reliable performance
1000 Watt Dual Relay Protection System - Heavy-duty digital aquarium thermostat controller rated for up to 1000W; dual relay protection safeguards your heater and electrical components; ideal for large tanks, reef systems, and high-power heating applications
3-Digit LED Display with 1/10th Degree Adjustment Control - Easy-to-read digital display shows real-time aquarium water temperature; fine-tune temperature in 0.1°F increments across 49.9°F–94°F range; Temperature Saving Memory protects your settings during power interruptions
Fresh & Saltwater Universal Compatibility - This professional aquarium temperature control system works perfectly in freshwater tanks, marine aquariums, reef systems, planted tanks, and specialized breeding setups; includes extended 32" sensor cord and 66" power cord for flexible installation
Description
The 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.