Inkbird ITC-308 Digital Temperature Controller Outlet Thermostat

In this review the Inkbird ITC-308 is evaluated as a compact, plug-and-play temperature controller aimed at hobbyists and light industrial users who need simple, reliable temperature control. The single biggest reason to buy is its dual relay output and dual display window, which let users monitor the measured temperature and the set temperature simultaneously while controlling both heating and refrigeration equipment without complex wiring.

Key Features

• Plug and play design: The unit is ready to use out of the box, making setup quick for anyone who needs temperature control without an electrician.
• Dual relay output: It can control a heater and a fridge at the same time, so a single controller handles both cooling and heating cycles for consistent results.
• Dual display window: The controller shows both the current measured temperature and the target set temperature at once, reducing guesswork during adjustments.
• Selectable units: Users can switch between Centigrade and Fahrenheit for compatibility with recipes, fermentation schedules, and regional preferences.
• 1100W maximum load: Designed for typical household 110V appliances up to 1100W, which covers many small fridges, heaters, and brew equipment used by homebrewers.

Who It's For

The ITC-308 is well suited to homebrewers, reptile keepers, and small-scale food curing or fermentation projects that need straightforward, two-stage temperature management. Its easy setup and ability to show both set and measured temperatures will appeal to users who want reliable control without advanced programming.

It is less appropriate for large commercial installations or devices that require networked monitoring, multiple sensor zones, or loads above the stated 1100W limit. Buyers who need precision laboratory control or multi-output automation should consider a more advanced controller.

Pros & Cons

Pros

• Simple plug-and-play setup makes it accessible to beginners and hobbyists.
• Dual relay output allows simultaneous connection of heating and refrigeration equipment.
• Dual display provides immediate feedback of both measured and set temperatures.
• Good value for money for homebrew and small-scale temperature control projects.

Cons

• Accuracy reports are mixed; some users see 1 to 2 deg F variance, so it may not meet strict lab-grade tolerance.
• Not suitable for loads above 1100W or for multi-zone applications without additional hardware.

Specifications

Brand	Inkbird
Model	ITC-308
Output type	Dual relay (heating and cooling)
Maximum output load	1100W (110V)
Display	Dual display window (measured and set)
Temperature units	Centigrade or Fahrenheit

Our Verdict

The Inkbird ITC-308 is a practical, cost-effective choice for hobbyists who need two-stage temperature control without complexity. It delivers clear displays, straightforward switching between heating and cooling, and an easy setup, making it particularly good value for homebrewers, reptile keepers, and small curing projects where precise networked monitoring is not required.

Frequently Asked Questions

Can this controller run a fridge and a heater at the same time?
Yes, the ITC-308 has dual relay outputs that support connecting refrigeration and heating equipment simultaneously for two-stage control.

What temperature units does it use?
The device supports both Centigrade and Fahrenheit; users can select the preferred unit for display and set points.

What is the maximum load it will handle?
The controller supports a maximum output load of 1100W at 110V, suitable for many small appliances but not for larger commercial equipment.