The Inkbird ITC-308S is a dual stage temperature controller designed for aquarium enthusiasts. It manages both heating and cooling devices to maintain stable water temperatures for freshwater, saltwater, tropical fish, and ornamental shrimp tanks. The controller features a microprocessor with precise sensing accuracy, allowing users to set desired temperature ranges with ease. Its dual relay output can independently control heaters and chillers, ensuring optimal conditions without overlapping operation. The outer casing is constructed from durable ABS plastic, offering resilience against moisture and minor impacts. The digital LCD display provides clear readings of current temperature and set points, while the tactile buttons enable quick adjustments. This unit is known for its reliability in long-term use, with a built-in safety delay to protect compressor-based chillers. The ITC-308S is compatible with most standard aquarium heaters and chillers up to 10A resistive or 1/3HP compressor load. Its compact design allows easy mounting on walls or tank stands. The temperature probe is housed in a stainless steel casing for corrosion resistance, suitable for constant immersion in water. The controller offers a temperature range of -50°C to 99°C with 0.1°C resolution, supporting both Fahrenheit and Celsius display. Adjustable hysteresis prevents frequent switching, while high and low temperature alarms alert users via the display. For hobbyists seeking stable temperature management, this controller provides a cost-effective solution. It eliminates the need for manual monitoring and reduces risks of temperature fluctuations that stress aquatic life. The dual stage approach also prevents simultaneous heating and cooling, improving energy efficiency. The device retains settings after power failure, ensuring continuity. Power consumption is minimal, contributing to overall aquarium efficiency. Build quality is consistent, with well-sealed electronics to resist humidity. With its straightforward setup and consistent performance, the ITC-308S serves as a practical tool for maintaining healthy aquarium environments. Its affordable price point makes it accessible for both beginners and experienced aquarists. The unit has a sleek black finish that blends with most equipment setups.

It delivers reliable temperature control without unnecessary complexity, combining functionality, durability, and affordability in a compact package.