Temperature Controller - Thermostat (heating or cooling) 110-220V 10A

Digital Temperature Controller with LED Display and Relay Output

This digital temperature controller is a simple, reliable solution for automatically switching heaters or coolers based on the ambient temperature. With its waterproof temperature probe and easy-to-read LED display, it is ideal for DIY incubators, aquariums, fermentation setups, greenhouses, or any environment where automatic temperature control is needed.

The controller operates in either heating or cooling mode depending on your programmed settings. When the measured temperature crosses the set thresholds, the built-in relay automatically turns your connected device ON or OFF.

Specifications:

• Temperature range: -50°C to +110°C
• Power supply: 110-220V AC
• Relay output: up to 10A (suitable for resistive loads like heaters or fans)
• Sensor: Waterproof NTC10K probe
• Display: Bright red 3-digit LED
• Dimensions: Approx. 60 × 45 × 31 mm
• Control accuracy: ±0.1°C

How to Use:

1. Connect power to the controller (make sure the voltage matches your model).
2. Connect your load (heater, cooler, fan, etc.) to the relay output terminals.
3. Insert the temperature probe in the area you want to monitor.

Programming Instructions:

• To set the “Power ON” temperature (start heating or cooling):
  Press the ▲ button once to view the current ON threshold.
  Hold ▲ for ~3 seconds until the display flashes. Use ▲ or ▼ to adjust the ON temperature.
• To set the “Power OFF” temperature (stop heating or cooling):
  Press ▼ once to view the current OFF threshold.
  Hold ▼ for ~3 seconds until the display flashes. Use ▲ or ▼ to adjust the OFF temperature.

Modes:

• Heating Mode: The controller turns ON when the temperature is below the ON value and turns OFF when it rises above the OFF value.
• Cooling Mode: The controller turns ON when the temperature is above the ON value and turns OFF when it falls below the OFF value.

The logic is determined by whether the ON temperature is lower or higher than the OFF temperature.

Other Features:

• Built-in relay with LED indicator light
• Simple 2-button interface
• Factory reset available (hold both ▲ and ▼ together until display shows 888)
• Error detection codes:
  • LLL: sensor not connected or faulty
  • HHH: temperature above measurement range

Applications:

• Homebrewing and fermentation control
• Incubators or terrariums
• Fan or heater automation
• Aquariums and hydroponic setups
• Greenhouses or climate boxes
• General-purpose thermostatic switching