The STC-3008 Digital Temperature Controller is a dual-display thermostat designed for automatic heating and cooling control.

Featuring two NTC temperature probes, independent temperature control channels, and a clear digital LED display, this controller allows users to monitor and regulate temperatures in various applications.

It is suitable for refrigeration systems, incubators, aquariums, greenhouses, heating equipment, and other temperature-controlled projects.

Key Features

• Dual Digital Display: Displays temperature readings for convenient monitoring.
• Dual Temperature Sensors: Includes two NTC probes for independent temperature measurement.
• Heating and Cooling Control: Supports automatic temperature regulation through relay outputs.
• Adjustable Temperature Settings: Configure the desired temperature and switching differential.
• Temperature Calibration: Supports temperature correction for improved measurement accuracy.
• High and Low Temperature Alarms: Provides alerts when temperatures exceed configured limits.
• Sensor Error Detection: Indicates temperature sensor faults.
• Power-Off Memory: Retains configured settings after power interruption.
• Compact Panel-Mount Design: Suitable for equipment panels and control enclosures.

Technical Specifications

Operating Principle

The STC-3008 monitors temperature through two external NTC probes.

Each control channel can operate according to its configured temperature settings.

Heating Mode:

• Activates the connected heating equipment when the temperature falls below the configured threshold.
• Switches off the heating equipment when the target temperature is reached.

Cooling Mode:

• Activates the connected cooling equipment when the temperature rises above the configured threshold.
• Switches off the cooling equipment when the target temperature is reached.

The switching differential helps prevent frequent relay operation near the set temperature.

Applications

• Refrigerators and Freezers
• Aquarium Temperature Control
• Greenhouse Monitoring
• Incubators
• Heating Systems
• Cooling Equipment
• Food Storage Equipment
• DIY Temperature Control Projects
• Industrial Temperature Monitoring

Important Notes

• Power Supply: Verify the voltage rating printed on the controller before connecting power.
• Two Independent Probes: Position each probe according to the required monitoring location.
• Relay Load Capacity: Verify the output relay ratings before connecting heaters, compressors, or other electrical loads.
• External Contactor: High-power equipment may require an appropriately rated contactor.
• Sensor Compatibility: Use compatible NTC temperature probes.
• Not a PID Controller: Temperature regulation uses ON/OFF relay switching rather than continuous PID control.
• Electrical Safety: Mains-voltage wiring should be performed by qualified personnel.

Package Includes

• 1 × STC-3008 Dual Display Temperature Controller

• 2 × NTC Temperature Probes (approximately 1m each)